DOI: 10.5061/dryad.0k6djhbd0
title: Data from: Electrostatic compatibilization of amorphous and semi-crystalline immiscible polymer blends

description: The rapid accumulation of plastic waste underscores the urgent need for
 effective recycling strategies, yet conventional approaches are hindered
 by the immiscibility of chemically dissimilar polymers, which
 phase-separate upon blending and yield poor material properties. This
 study demonstrates a versatile strategy for electrostatic
 compatibilization, utilizing acid–base proton transfer between minimally
 functionalized polymers. Waste-derived polystyrene (PS) was successfully
 modified with &lt; 4 mol% acid groups, while amorphous polybutadiene
 (PBD) was functionalized with &lt; 6 mol% diethylamino base groups and
 subsequently hydrogenated to yield semi-crystalline polyethylene (PE) with
 the same functionalization level as the PBD. In both cases, blending with
 functionalized PS produced optically transparent, mechanically robust
 films. Notably, increasing charge density from 1.0 to 3.5 mol%
 significantly reduced domain sizes, indicating enhanced compatibilization,
 while increasing PS molecular weight from 28 to 470 kDa led to a notable
 three-order-of-magnitude increase in toughness. In PE/PS blends, the
 preservation of crystallinity during melt reprocessing was achieved by
 maintaining low functionalization levels, demonstrating compatibility
 without sacrificing critical material properties. These findings establish
 electrostatic compatibilization as a powerful, scalable platform for
 creating high-performance materials from chemically diverse and mixed
 plastic waste streams.
description: Data from a peer-reviewed article: Title: Electrostatic Compatibilization
 of Amorphous and Semi-Crystalline Immiscible Polymer Blends Journal: ACS
 Macro Letters Authors: Haley K. Beech#, Kseniia M. Karnaukh#, Madeleine E.
 Miyamoto, KeRay Chen, Jerrick Edmund, Javier Read de Alaniz, Craig J.
 Hawker, and Rachel A. Segalman \#co-first author Corresponding authors:
 Javier Read de Alaniz ([javier@ucsb.edu](mailto:javier@ucsb.edu)), Craig
 J. Hawker ([hawker@mrl.ucsb.edu](mailto:hawker@mrl.ucsb.edu)), Rachel A.
 Segalman ([segalman@ucsb.edu](mailto:segalman@ucsb.edu)) --- This dataset
 contains the necessary experimental data to reproduce all main text and
 supporting figures. Data files are organized to match the
 manuscript's figure and supporting information. All data can be
 opened as a .csv file using Excel. Figures that are illustrations are not
 included in the folders. This includes Fig. 1, Figure 2, Figure 6a,
 Schemes S1-S6 Folder and File List: A) Figure 3a B) Figure 3b.csv C)
 Figure 4a D) Figure 4d E) Figure 5a.csv F) Figure 5b.png G) Figure 5c.png
 H) Figure 5d.png I) Figure 5e.png J) Figure 6b.csv K) Figure 6c L) Figure
 S1.csv M) Figure S2.csv N) Figure S3.csv O) Figure S4.csv P) Figure S5.csv
 Q) Figure S6.csv R) Figure S7.csv S) Figure S8.csv T) Figure S9.csv U)
 Figure S10.csv V) Figure S11.csv W) Figure S12.csv X) Figure S13.csv Y)
 Figure S14.csv Z) Figure S15.csv AA) Figure S16.csv AB) Figure S17.csv AC)
 Figure S18.csv AD) Figure S19.csv AE) Figure S20a.csv AF) Figure S20b.csv
 AG) Figure S21a.csv AH) Figure S21b.csv AI) Figure S21c.csv AJ) Figure
 S22a.csv AK) Figure S22b.csv AL) Figure S23a.csv AM) Figure S23b.csv AN)
 Figure S24.csv AO) Figure S25left.csv AP) Figure S25right.csv AQ) Figure
 S26.csv AR) Figure S27left.csv AS) Figure S27right.csv AT) Figure
 S28left.csv AU) Figure S28right.csv AV) Figure S29.csv AW) Figure S30a.csv
 AX) Figure S30b.csv AY) Figure S30c.csv AZ) Figure S31.csv BA) Figure S33a
 BB) Figure S33b BC) Figure S34a BD) Figure S34b BE) Figure S35a BF) Figure
 S35b BG) Figure S36a BH) Figure S36b BI) Figure S37left.csv BJ) Figure
 S37right.csv BK) Figure S38left.csv BL) Figure S38right.csv BM) Figure
 S39left.csv BN) Figure S39right.csv BO) Figure S40left.csv BP) Figure
 S41left.csv BQ) Figure S41right.csv BR) Figure S42left.csv BS) Figure
 S42right.csv BT) Figure S44a BU) Figure S44b BV) Figure S44c BW) Figure
 S44d BX) Figure S45 Abstract.txt README.txt ## Figure 3: SAXS Profile and
 Domain Spacing A) Fig3a: Folder: SAXS PS/PBD blends with varied levels of
 charge; each file is named for the mol% charge of the blend * Column A:
 Scattering Vector, q (A^(-1)) * Column B: Scattering Intensity, I(q)
 (arbitrary units) B) Fig3b: Domain size as a function of the average mol%
 charge of blend * Column A: Average Charge of Blend (mol%) * Column B:
 Domain Size (nm) --- ## Figure 4: Tensile Tests and Tensile Properties.
 Data for Figures 4b, c, e, and f are available in Table S11 C) Fig4a:
 Folder: Stress strain curves for PBD/PS blends of varied PS molecular
 weight * Column A: Strain (%) * Column B: Stress (MPa) D) Fig4d: Folder:
 Stress strain curves for PBD/PS blends of varied average charge * Column
 A: Strain (%) * Column B: Stress (MPa) --- ## Figure 5A: Percent
 crystallinity trends of 27 kDa PE / 28 kDa PS blends prepared using
 different processing techniques as a function of the average charge of
 blend components. E) Figure 5a.csv * Row 1: X and Y axes, corresponding to
 Average Charge of Blend Components and Percent Crystallinity (%) with
 STDEV.S * Row 2: Processing technique * dataset 1: Theoretical - Average
 Charge of Blend Components (X) and Percent Crystallinity with STDEV.S (Y)
 -&gt; Columns A + B + C * dataset 2: Hot-Pressed - Average Charge of Blend
 Components (X) and Percent Crystallinity with STDEV.S (Y) -&gt; Columns A
 + D + E * dataset 3: Drop-Cast & Hot-Press - Average Charge of Blend
 Components (X) and Percent Crystallinity with STDEV.S (Y) -&gt; Columns A
 + F + G --- ## Figure 5B-E: Photos of PE/PS blends F) Figure 5b.png:
 unfunctionalized blend, hot pressed G) Figure 5c.tif: optical microscopy
 of unfunctionalized blend H) Figure 5d.png: functionalized blend, hot
 pressed I) Figure 5e.png: drop-cast followed by hot press
 ------------------------------------------------- ## Figure 6: Tensile
 Tests and Tensile Properties. Data for Figure 6b available in Table S17;
 data for Figure 6d are available in Table S18. J) Figure 6b.csv: The
 percent crystallinity of the blend throughout reprocessing cycles. *
 Column 1: Sample/Processing * Column 2: Percent Crystallinity * Column 2:
 STDEV.S K) Fig6c: Folder: Stress strain curves for PE/PS blends of varied
 reprocessing histories * Column A: Strain (%) * Column B: Stress (MPa) ---
 ## FIGURE S1: 1H NMR spectrum of polystyrene synthesized via RAFT before
 chain end removal. L) FigS1.csv * Column 1: 1H (ppm) * Column 2:
 signal/arbitrary intensity --- ## FIGURE S2: 1H NMR spectrum of
 polystyrene synthesized via RAFT after chain end removal. M) FigS2.csv *
 Column 1: 1H (ppm) * Column 2: signal/arbitrary intensity --- ## FIGURE
 S3: 1H NMR spectrum of 28 kDa polystyrene sulfonate with 1.5 mol%
 sulfonate groups. N) FigS3.csv * Column 1: 1H (ppm) * Column 2:
 signal/arbitrary intensity --- ## FIGURE S4: 1H NMR spectrum of 28 kDa
 polystyrene sulfonate with 2.6 mol% sulfonate groups. O) FigS4.csv *
 Column 1: 1H (ppm) * Column 2: signal/arbitrary intensity --- ## FIGURE
 S5: 1H NMR spectrum of 28 kDa polystyrene sulfonate with 3.5 mol%
 sulfonate groups. P) FigS5.csv * Column 1: 1H (ppm) * Column 2:
 signal/arbitrary intensity --- ## FIGURE S6: 1H NMR spectrum of 140 kDa
 recycled polystyrene sulfonate with 2.9 mol% sulfonate groups. Q)
 FigS6.csv * Column 1: 1H (ppm) * Column 2: signal/arbitrary intensity ---
 ## FIGURE S7: 1H NMR spectrum of 470 kDa polystyrene sulfonate with 1.1
 mol% sulfonate groups. R) FigS7.csv * Column 1: 1H (ppm) * Column 2:
 signal/arbitrary intensity --- ## FIGURE S8: 1H NMR spectrum of 470 kDa
 polystyrene sulfonate with 3.6 mol% sulfonate groups. S) FigS8.csv *
 Column 1: 1H (ppm) * Column 2: signal/arbitrary intensity --- ## FIGURE
 S9: Representative 1H NMR spectrum of polystyrene sulfonate titrated with
 ethyl imidazole. The sample shown is 28 kDa PSS with 3.5 mol% sulfonate
 groups. T) FigS9.csv * Column 1: 1H (ppm) * Column 2: signal/arbitrary
 intensity --- ## FIGURE S10: Representative 1H NMR spectrum of methylated
 polystyrene sulfonate for GPC. The sample shown is 470 kDa PSS with 1.1
 mol% sulfonate groups. U) FigS10.csv * Column 1: 1H (ppm) * Column 2:
 signal/arbitrary intensity --- ## FIGURE S11: 1H NMR spectrum of 26 kDa
 polybutadiene (LBR-305, Kuraray). V) FigS11.csv * Column 1: 1H (ppm) *
 Column 2: signal/arbitrary intensity --- ## FIGURE S12: Quantitative 13C
 NMR spectrum of 26 kDa polybutadiene (LBR-305, Kuraray). W) FigS12.csv *
 Column 1: 13C (ppm) * Column 2: signal/arbitrary intensity --- ## FIGURE
 S13: 1H NMR spectrum of polybutadiene with ≈ 0.7 mol% diethylamino
 functionality. X) FigS13.csv * Column 1: 1H (ppm) * Column 2:
 signal/arbitrary intensity --- ## FIGURE S14: 1H NMR spectrum of
 polybutadiene with ≈ 2.6 mol% diethylamino functionality. Y) FigS14.csv *
 Column 1: 1H (ppm) * Column 2: signal/arbitrary intensity --- ## FIGURE
 S15: 1H NMR spectrum of polybutadiene with ≈ 5.3 mol% diethylamino
 functionality. Z) FigS15.csv * Column 1: 1H (ppm) * Column 2:
 signal/arbitrary intensity --- ## FIGURE S16: 1H NMR spectrum of 26 kDa
 polybutadiene hydrogenated to 27 kDa PE. AA) FigS16.csv * Column 1: 1H
 (ppm) * Column 2: signal/arbitrary intensity --- ## FIGURE S17: 1H NMR
 spectrum of polybutadiene with ≈ 0.7 mol% diethylamino functionality,
 hydrogenated to PE. AB) FigS17.csv * Column 1: 1H (ppm) * Column 2:
 signal/arbitrary intensity --- ## FIGURE S18: 1H NMR spectrum of
 polybutadiene with ≈ 2.6 mol% diethylamino functionality, hydrogenated to
 PE. AC) FigS18.csv * Column 1: 1H (ppm) * Column 2: signal/arbitrary
 intensity --- ## FIGURE S19: 1H NMR spectrum of polybutadiene with ≈ 5.3
 mol% diethylamino functionality, hydrogenated to PE. AD) FigS19.csv *
 Column 1: 1H (ppm) * Column 2: signal/arbitrary intensity --- ## FIGURE
 S20: SEC Traces AE) FigS20a.csv: SEC trace of 28 kDa RAFT PS polymer
 before chain end removal * Column A: Elution Time (min) * Column B: RI
 Signal (a.u.) * Column C: Normalized RI AF) FigS20b.csv: SEC trace of 28
 kDa RAFT PS polymer after chain end removal * Column A: Elution Time (min)
 * Column B: RI Signal (a.u.) * Column C: Normalized RI --- ## FIGURE S21:
 SEC Traces AG) FigS21a.csv: SEC trace of PSS 1.5 mol% methylated * Column
 A: Elution Time (min) * Column B: RI Signal (a.u.) * Column C: Normalized
 RI AH) FigS21b.csv: SEC trace of PSS 2.5 mol% methylated * Column A:
 Elution Time (min) * Column B: RI Signal (a.u.) * Column C: Normalized RI
 AI) FigS21c.csv: SEC trace of PSS 3.5 mol% methylated * Column A: Elution
 Time (min) * Column B: RI Signal (a.u.) * Column C: Normalized RI --- ##
 FIGURE S22: SEC Traces AJ) FigS22a.csv: SEC trace of unfunctionalized 140
 kDa PS foam * Column A: Elution Time (min) * Column B: RI Signal (a.u.) *
 Column C: Normalized RI AK) FigS22b.csv: SEC trace of 3 mol%
 functionalized 140 kDa PSS * Column A: Elution Time (min) * Column B: RI
 Signal (a.u.) * Column C: Normalized RI --- ## FIGURE S23: SEC Traces AL)
 FigS23a.csv: SEC trace of unfunctionalized 470 kDa PS * Column A: Elution
 Time (min) * Column B: RI Signal (a.u.) * Column C: Normalized RI AM)
 FigS23b.csv: SEC trace of 1.1 mol% functionalized 470 kDa PSS * Column A:
 Elution Time (min) * Column B: RI Signal (a.u.) * Column C: Normalized RI
 --- ## FIGURE S24: Chloroform SEC traces show unfunctionalized
 polybutadiene (LBR-305, Kuraray) and polybutadiene samples incorporating ≈
 0.7, 2.6, and 5.3 mol% diethylamino groups. AN) FigS24.csv * Row 1: X and
 Y axes, corresponding to Retention time (min) and RI Signal
 (a.u.)/Normalized dRI * Row 2: Polybutadiene functionalization * dataset
 1: Unfunctionalized - Retention Time (X) and RI Signal (Y) -&gt; Columns A
 + B * dataset 2: Unfunctionalized - Retention Time (X) and Normalized dRI
 (Y) -&gt; Columns A + C * dataset 3: 0.7 mol% - Retention Time (X) and RI
 Signal (Y) -&gt; Columns A + D * dataset 4: 0.7 mol% - Retention Time (X)
 and Normalized dRI (Y) -&gt; Columns A + E * dataset 5: 2.6 mol% -
 Retention Time (X) and RI Signal (Y) -&gt; Columns A + F * dataset 6: 2.6
 mol% - Retention Time (X) and Normalized dRI (Y) -&gt; Columns A + G *
 dataset 7: 5.3 mol% - Retention Time (X) and RI Signal (Y) -&gt; Columns A
 + H * dataset 8: 5.3 mol% - Retention Time (X) and Normalized dRI (Y)
 -&gt; Columns A + I --- ## FIGURE S25: Thermogravimetric analysis of 26
 kDa PBD (left) and 27 kDa PE (right) functionalized with varying mol% of
 diethylamino groups. AO) FigS25left.csv * Row 1: X and Y axes,
 corresponding to Temperature (°C) and Weight % * Row 2: Polybutadiene
 functionalization * dataset 1: PBD - Temperature (X) and Weight% (Y) -&gt;
 Columns A + B * dataset 2: PBD 0.7 mol% - Temperature (X) and Weight% (Y)
 -&gt; Columns C + D * dataset 3: PBD 2.6 mol% - Temperature (X) and
 Weight% (Y) -&gt; Columns E + F * dataset 4: PBD 5.3 mol% - Temperature
 (X) and Weight% (Y) -&gt; Columns G + H AP) FigS25right.csv * Row 1: X and
 Y axes, corresponding to Temperature (°C) and Weight % * Row 2:
 Polyethylene functionalization * dataset 1: PE - Temperature (X) and
 Weight% (Y) -&gt; Columns A + B * dataset 2: PE 0.7 mol% - Temperature (X)
 and Weight% (Y) -&gt; Columns A + C * dataset 3: PE 2.6 mol% - Temperature
 (X) and Weight% (Y) -&gt; Columns A + D * dataset 4: PE 5.3 mol% -
 Temperature (X) and Weight% (Y) -&gt; Columns A + E --- ## FIGURE
 S26:Thermogravimetric analysis of 28 kDa PS samples functionalized with
 varying mol% of sulfonic acid groups. AQ) FigS26.csv * Row 1: X and Y
 axes, corresponding to Temperature (°C) and Weight % * Row 2: Polystyrene
 functionalization * dataset 1: PS - Temperature (X) and Weight% (Y) -&gt;
 Columns A + B * dataset 2: PS 1.5 mol% - Temperature (X) and Weight% (Y)
 -&gt; Columns C + D * dataset 3: PS 2.6 mol% - Temperature (X) and Weight%
 (Y) -&gt; Columns E + F * dataset 4: PS 3.5 mol% - Temperature (X) and
 Weight% (Y) -&gt; Columns G + H --- ## FIGURE S27: DSC of 26 kDa PBD
 (left) and 28 kDa PS (right) samples with varying degrees of
 functionalization (mol%). The third heating cycle at a ramp rate of 10
 °C/min (exo up). AR) FigS27left.csv * Row 1: X and Y axes, corresponding
 to Temperature (°C) and Normalized Heat Flow * Row 2: Polybutadiene
 functionalization * dataset 1: PBD - Temperature (X) and Normalized Heat
 Flow (Y) -&gt; Columns A + B * dataset 2: PBD 0.7 mol% - Temperature (X)
 and Normalized Heat Flow (Y) -&gt; Columns C + D * dataset 3: PBD 2.6 mol%
 - Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns E + F *
 dataset 4: PBD 5.3 mol% - Temperature (X) and Normalized Heat Flow (Y)
 -&gt; Columns G + H AS) FigS27right.csv * Row 1: X and Y axes,
 corresponding to Temperature (°C) and Normalized Heat Flow * Row 2:
 Polystyrene functionalization * dataset 1: PS - Temperature (X) and
 Normalized Heat Flow (Y) -&gt; Columns A + B * dataset 2: PS 1.5 mol% -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns C + D * dataset
 3: PS 2.6 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt;
 Columns E + F * dataset 4: PS 3.5 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns G + H --- ## FIGURE S28: DSC of 27 kDa PE
 samples with varying degrees of functionalization (mol%). The third
 heating cycle (left) and the second cooling cycle (right) at a ramp rate
 of 10 °C/min (exo up). AT) FigS28left.csv * Row 1: X and Y axes,
 corresponding to Temperature (°C) and Normalized Heat Flow * Row 2:
 Polyethylene functionalization * dataset 1: PE - Temperature (X) and
 Normalized Heat Flow (Y) -&gt; Columns A + B * dataset 2: PE 0.7 mol% -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns C + D * dataset
 3: PE 2.6 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt;
 Columns E + F * dataset 4: PE 5.3 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns G + H AU) FigS28right.csv * Row 1: X and Y
 axes, corresponding to Temperature (°C) and Normalized Heat Flow * Row 2:
 Polyethylene functionalization * dataset 1: PE - Temperature (X) and
 Normalized Heat Flow (Y) -&gt; Columns A + B * dataset 2: PE 0.7 mol% -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns C + D * dataset
 3: PE 2.6 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt;
 Columns E + F * dataset 4: PE 5.3 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns G + H --- ## FIGURE S29: DSC traces for a
 series of 26 kDa PBD / 28 kDa PS blends with varying average charge. The
 third heating cycle at a ramp rate of 10 °C/min (exo up). AV) FigS29:
 Folder: DSC curves for PBD/PS blends with varied mol% charge * Column A:
 Temperature (°C) * Column B: Normalized Heat Flow --- ## FIGURE S30: SAXS
 Profiles AW) FigS30a: SAXS of 28 kDa PS PBD blend * Column A: Scattering
 Vector, q (A^(-1)) * Column B: Scattering Intensity, I(q) (arbitrary
 units) AX) FigS30b: SAXS of 140 kDa PS PBD blend * Column A: Scattering
 Vector, q (A^(-1)) * Column B: Scattering Intensity, I(q) (arbitrary
 units) AY) FigS30c: SAXS of 470 kDa PS PBD blend * Column A: Scattering
 Vector, q (A^(-1)) * Column B: Scattering Intensity, I(q) (arbitrary
 units) --- ## FIGURE S31: SAXS Profiles AZ) FigS31a: SAXS of 1 mol% charge
 PS PBD blend * Column A: Scattering Vector, q (A^(-1)) * Column B:
 Scattering Intensity, I(q) (arbitrary units) ## FigS31b: same data as file
 FigS30c (SAXS of 3 mol% charge PS PBD blend) FIGURE S32 data are included
 in Table S11 --- ## FIGURE S33: Tensile Test Replicates BA) FigS33a:
 Folder: Replicate stress strain curves for PBD 0.7 / PS 1.5 mol% blend *
 Column A: Strain (%) * Column B: Stress (MPa) BB) FigS33b: Folder:
 Replicate stress strain curves for PBD 2.6 / PS 3.5 mol% blend * Column A:
 Strain (%) * Column B: Stress (MPa) --- ## FIGURE S34: Tensile Test
 Replicates BC) FigS34a: Folder: Replicate stress strain curves for PBD 2.6
 / PS 3 mol% 140 kDa blend * Column A: Strain (%) * Column B: Stress (MPa)
 BD) FigS34b: Folder: Replicate stress strain curves for commercial HIPS *
 Column A: Strain (%) * Column B: Stress (MPa) --- ## FIGURE S35: Tensile
 Test Replicates BE) FigS35a: Folder: Replicate stress strain curves for
 PBD 0.7 / PS 1.1 mol% 470 kDa blend * Column A: Strain (%) * Column B:
 Stress (MPa) BF) FigS35b: Folder: Replicate stress strain curves for PBD
 2.6 / PS 3.7 mol% 470 kDa blend * Column A: Strain (%) * Column B: Stress
 (MPa) --- ## FIGURE S36: Tensile Test Replicates BG) FigS36a: Folder:
 Replicate stress strain curves for Styrofoam packaging * Column A: Strain
 (%) * Column B: Stress (MPa) BH) FigS36b: Folder: Replicate stress strain
 curves for 470 kDa PS * Column A: Strain (%) * Column B: Stress (MPa) ---
 ## FIGURE S37: DSC analysis of 27 kDa PE / 28 kDa PS blends prepared by
 hot pressing with varied levels of average charge (mol%). The third
 heating cycle (left) and the second cooling cycle (right) at a ramp rate
 of 10 °C/min (exo up). BI) FigS37left.csv: * Row 1: X and Y axes,
 corresponding to Temperature (°C) and Normalized Heat Flow * Row 2:
 Average charge of the PE/PS blend * dataset 1: Unfunctionalized -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns A + B * dataset
 2: 1 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns C +
 D * dataset 3: 2.6 mol% - Temperature (X) and Normalized Heat Flow (Y)
 -&gt; Columns E + F * dataset 4: 4 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns G + H BJ) FigS37right.csv * Row 1: X and Y
 axes, corresponding to Temperature (°C) and Normalized Heat Flow * Row 2:
 Average charge of the PE/PS blend * dataset 1: Unfunctionalized -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns A + B * dataset
 2: 1 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns C +
 D * dataset 3: 2.6 mol% - Temperature (X) and Normalized Heat Flow (Y)
 -&gt; Columns E + F * dataset 4: 4 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns G + H --- ## FIGURE S38: DSC analysis of 27
 kDa PE / 28 kDa PS blends prepared by drop-casting with varied levels of
 average charge (mol%). The third heating cycle (left) and the second
 cooling cycle (right) at a ramp rate of 10 °C/min (exo up). BK)
 FigS38left.csv * Row 1: X and Y axes, corresponding to Temperature (°C)
 and Normalized Heat Flow * Row 2: Average charge of the PE/PS blend *
 dataset 1: Unfunctionalized - Temperature (X) and Normalized Heat Flow (Y)
 -&gt; Columns A + B * dataset 2: 1 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns C + D * dataset 3: 2.6 mol% - Temperature (X)
 and Normalized Heat Flow (Y) -&gt; Columns E + F * dataset 4: 4 mol% -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns G + H BL)
 FigS38right.csv * Row 1: X and Y axes, corresponding to Temperature (°C)
 and Normalized Heat Flow * Row 2: Average charge of the PE/PS blend *
 dataset 1: Unfunctionalized - Temperature (X) and Normalized Heat Flow (Y)
 -&gt; Columns A + B * dataset 2: 1 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns C + D * dataset 3: 2.6 mol% - Temperature (X)
 and Normalized Heat Flow (Y) -&gt; Columns E + F * dataset 4: 4 mol% -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns G + H --- ##
 FIGURE S39: DSC analysis of 27 kDa PE / 28 kDa PS blends prepared by
 drop-casting & hot pressing with varied levels of average charge
 (mol%). The third heating cycle (left) and the second cooling cycle
 (right) at a ramp rate of 10 °C/min (exo up). BM) FigS39left.csv * Row 1:
 X and Y axes, corresponding to Temperature (°C) and Normalized Heat Flow *
 Row 2: Average charge of the PE/PS blend * dataset 1: Unfunctionalized -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns A + B * dataset
 2: 1 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns C +
 D * dataset 3: 2.6 mol% - Temperature (X) and Normalized Heat Flow (Y)
 -&gt; Columns E + F * dataset 4: 4 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns G + H BN) FigS39right.csv * Row 1: X and Y
 axes, corresponding to Temperature (°C) and Normalized Heat Flow * Row 2:
 Average charge of the PE/PS blend * dataset 1: Unfunctionalized -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns A + B * dataset
 2: 1 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns C +
 D * dataset 3: 2.6 mol% - Temperature (X) and Normalized Heat Flow (Y)
 -&gt; Columns E + F * dataset 4: 4 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns G + H --- ## FIGURE S40left: Percent
 crystallinity trends of 27 kDa PE / 28 kDa PS blends prepared using
 different processing techniques as a function of the average charge of
 blend components (left). BO) FigS40left.csv * Row 1: X and Y axes,
 corresponding to Average Charge of Blend Components and Percent
 Crystallinity (%) with STDEV.S * Row 2: Processing technique * dataset 1:
 Theoretical - Average Charge of Blend Components (X) and Percent
 Crystallinity with STDEV.S (Y) -&gt; Columns A + B + C * dataset 2:
 Hot-Pressed - Average Charge of Blend Components (X) and Percent
 Crystallinity with STDEV.S (Y) -&gt; Columns A + D + E * dataset 3:
 Drop-Cast - Average Charge of Blend Components (X) and Percent
 Crystallinity with STDEV.S (Y) -&gt; Columns A + F + G * dataset 4:
 Drop-Cast & Hot-Press - Average Charge of Blend Components (X) and
 Percent Crystallinity with STDEV.S (Y) -&gt; Columns A + H + I --- ##
 FIGURE S41: Overlaid image of DSC analysis of 27 kDa PE with 0.7 mol% of
 base groups, 140 kDa PS with 3 mol% sulfonic acid groups, and their
 corresponding blend with 1.4 mol% average charge, prepared by
 drop-casting. The third heating cycle (left) and the second cooling cycle
 (right) at a ramp rate of 10 °C/min (exo up). BP) FigS41left.csv * Row 1:
 X and Y axes, corresponding to Temperature (°C) and Normalized Heat Flow *
 Row 2: Type of polymer/blend * dataset 1: PS 3 mol% - Temperature (X) and
 Normalized Heat Flow (Y) -&gt; Columns A + B * dataset 2: PE 0.7 mol% -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns C + D * dataset
 3: PE/PS 1.4 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt;
 Columns E + F BQ) FigS41right.csv * Row 1: X and Y axes, corresponding to
 Temperature (°C) and Normalized Heat Flow * Row 2: Type of polymer/blend *
 dataset 1: PS 3 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt;
 Columns A + B * dataset 2: PE 0.7 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns C + D * dataset 3: PE/PS 1.4 mol% -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns E + F --- ##
 FIGURE S42: Overlaid image of DSC analysis of 27 kDa PE / 140 kDa PS blend
 with average charge of 1.4 mol% prepared by drop-casting and corresponding
 blends after each reprocessing cycle. The third heating cycle (left) and
 the second cooling cycle (right) at a ramp rate of 10 °C/min (exo up). BR)
 FigS42left.csv * Row 1: X and Y axes, corresponding to Temperature (°C)
 and Normalized Heat Flow * Row 2: Type of blend * dataset 1: PE/PS 1.4
 mol% - Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns A + B *
 dataset 2: REP1 - Temperature (X) and Normalized Heat Flow (Y) -&gt;
 Columns C + D * dataset 3: REP2 - Temperature (X) and Normalized Heat Flow
 (Y) -&gt; Columns E + F * dataset 4: REP3 - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns G + H BS) FigS42right.csv * Row 1: X and Y
 axes, corresponding to Temperature (°C) and Normalized Heat Flow * Row 2:
 Type of blend * dataset 1: PE/PS 1.4 mol% - Temperature (X) and Normalized
 Heat Flow (Y) -&gt; Columns A + B * dataset 2: REP1 - Temperature (X) and
 Normalized Heat Flow (Y) -&gt; Columns C + D * dataset 3: REP2 -
 Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns E + F * dataset
 4: REP3 - Temperature (X) and Normalized Heat Flow (Y) -&gt; Columns G + H
 --- FIGURE S43 data are included in table S18 --- ## FIGURE S44: Tensile
 Test Replicates BT) FigS44a: Folder: Replicate stress strain curves for PE
 0.7 / PS 3 mol% 140 kDa drop cast blend * Column A: Strain (%) * Column B:
 Stress (MPa) BU) FigS44b: Folder: Replicate stress strain curves for PE
 0.7 / PS 3 mol% 140 kDa drop cast blend and hot pressed * Column A: Strain
 (%) * Column B: Stress (MPa) BV) FigS44c: Folder: Replicate stress strain
 curves for PE 0.7 / PS 3 mol% 140 kDa drop cast blend and hot pressed x2 *
 Column A: Strain (%) * Column B: Stress (MPa) BW) FigS44d: Folder:
 Replicate stress strain curves for PE 0.7 / PS 3 mol% 140 kDa drop cast
 blend and hot pressed x3 * Column A: Strain (%) * Column B: Stress (MPa)
 --- ## FIGURE S45: Tensile Test Replicates BX) FigS45: Folder: Replicate
 stress strain curves for PE (hydrogenated PBD) * Column A: Strain (%) *
 Column B: Stress (MPa)