bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chemically Powered Micro‐ and Nanomotors
Authors: Sánchez Samuel , Soler Lluís , Katuri Jaideep 
Published: December 2014

AbstractChemically powered micro‐ and nanomotors are small devices that are self‐propelled by catalytic reactions in fluids. Taking inspiration from biomotors, scientists are aiming to find the best architecture for self‐propulsion, understand the mechanisms of motion, and develop accurate control over the motion. Remotely guided nanomotors can transport cargo to desired targets, drill into biomaterials, sense their environment, mix or pump fluids, and clean polluted water. This Review summarizes the major advances in the growing field of catalytic nanomotors, which started ten years ago.
Crystal Structures and Redox Responses Coupled with Ion Recognition of p‐Benzoquinone‐ and Hydroquinone‐Fused [18]crown‐6
Authors: Kobayashi Takayuki , Nakane Yuta , Takeda Takashi , Hoshino Norihisa , Kawai Hidetoshi , Akutagawa Tomoyuki 
Published: December 2014

AbstractThe crystal structures and redox properties of p‐benzoquinone (BQ)‐fused [18]crown‐6 1 and bis‐BQ‐fused [18]crown‐6 2 were examined. The anion radicals of these BQ molecules were stabilized by addition of metal ions, through effective electrostatic interactions between the negatively charged BQ moiety and positively charged ion‐capturing [18]crown‐6 unit. The electrostatic interactions and solvation energy played important roles in determining the magnitudes of anodic redox shifts in the reduction potentials. Regular π‐stacking of BQ units and regular arrays of [18]crown‐6 units were observed in crystal 2, in which one‐dimensional π‐electron columns were separated by ionic channels. The hydroquinone‐fused [18]crown‐6 molecule 3 and a new BQ‐ and phenol‐fused [18]crown‐6 derivative 4 were obtained as single crystals. The molecular conformations of [18]crown‐6 in crystal 3 and hydrated crystal 3⋅H2O were different from each other.
Synthesis and Electrochemical Biosensing Properties of Hierarchically Porous Nitrogen‐Doped Graphene Microspheres
Authors: Sun Dongfei , Yang Juan , Yan Xingbin 
Published: December 2014

AbstractThree‐dimensional nitrogen‐doped graphene microspheres (3D NGSs) were prepared by using integrated precursor‐assisted chemical vapor deposition and the hydrothermal method. The 3D NGSs, with an interconnected network structure, show a high crystallization degree, abundant pore channels, and appropriate nitrogen doping. Electrochemical studies confirm that the glucose oxidase/NGSs electrode shows excellent catalytic activity with a high sensitivity of 15.89 μA mM−1 cm−2, over a wide linear range of 0.1–3.7 mM, and fast response time of 3.6 s.
A Free‐Blockage Controlled Release System Based on the Hydrophobic/Hydrophilic Conversion of Mesoporous Silica Nanopores
Authors: Wang Wenqian , Chen Linfeng , Xu Li‐ping , Du Hongwu , Wen Yongqiang , Song Yanlin , Zhang Xueji 
Published: December 2014

AbstractA pH‐responsive free‐blockage release system was achieved through controlling the hydrophobic/hydrophilic conversion of mesoporous silica nanopores. This system further presented pulsatile release with changing pH values between 4.0 and 7.0 for several cycles. This free‐blockage release system could also release antitumor agents to induce cell death after infecting tumor cells and could have the ability of continuous infection to tumor cells with high drug‐delivery efficiency and few side effects.
Impact of the Oxygen Defects and the Hydrogen Concentration on the Surface of Tetragonal and Monoclinic ZrO2 on the Reduction Rates of Stearic Acid on Ni/ZrO2
Authors: Foraita Sebastian , Fulton John L. , Chase Zizwe A. , Vjunov Aleksei , Xu Pinghong , Baráth Eszter , Camaioni Donald M. , Zhao Chen , Lercher Johannes A. 
Published: December 2014

AbstractThe role of the specific physicochemical properties of ZrO2 phases on Ni/ZrO2 has been explored with respect to the reduction of stearic acid. Conversion on pure m‐ZrO2 is 1.3 times more active than on t‐ZrO2, whereas Ni/m‐ZrO2 is three times more active than Ni/t‐ZrO2. Although the hydrodeoxygenation of stearic acid can be catalyzed solely by Ni, the synergistic interaction between Ni and the ZrO2 support causes the variations in the reaction rates. Adsorption of the carboxylic acid group on an oxygen vacancy of ZrO2 and the abstraction of the α‐hydrogen atom with the elimination of the oxygen atom to produce a ketene is the key to enhance the overall rate. The hydrogenated intermediate 1‐octadecanol is in turn decarbonylated to heptadecane with identical rates on all catalysts. Decarbonylation of 1‐octadecanol is concluded to be limited by the competitive adsorption of reactants and intermediate. The substantially higher adsorption of propionic acid demonstrated by IR spectroscopy and the higher reactivity to O2 exchange reactions with the more active catalyst indicate that the higher concentration of active oxygen defects on m‐ZrO2 compared to t‐ZrO2 causes the higher activity of Ni/m‐ZrO2.
Dihydrogen Catalysis of the Reversible Formation and Cleavage of CH and NH Bonds of Aminopyridinate Ligands Bound to (η5‐C5Me5)IrIII
Authors: Zamorano Ana , Rendón Nuria , López‐Serrano Joaquín , Valpuesta José E. V. , Álvarez Eleuterio , Carmona Ernesto 
Published: December 2014

AbstractThis study focuses on a series of cationic complexes of iridium that contain aminopyridinate (Ap) ligands bound to an (η5‐C5Me5)IrIII fragment. The new complexes have the chemical composition [Ir(Ap)(η5‐C5Me5)]+, exist in the form of two isomers (1+ and 2+) and were isolated as salts of the BArF− anion (BArF=B[3,5‐(CF3)2C6H3]4). Four Ap ligands that differ in the nature of their bulky aryl substituents at the amido nitrogen atom and pyridinic ring were employed. In the presence of H2, the electrophilicity of the IrIII centre of these complexes allows for a reversible prototropic rearrangement that changes the nature and coordination mode of the aminopyridinate ligand between the well‐known κ2‐N,N′‐bidentate binding in 1+ and the unprecedented κ‐N,η3‐pseudo‐allyl‐coordination mode in isomers 2+ through activation of a benzylic CH bond and formal proton transfer to the amido nitrogen atom. Experimental and computational studies evidence that the overall rearrangement, which entails reversible formation and cleavage of HH, CH and NH bonds, is catalysed by dihydrogen under homogeneous conditions.
Highly Enantioselective [3+2] Cycloaddition of Vinylcyclopropane with Nitroalkenes Catalyzed by Palladium(0) with a Chiral Bis(tert‐amine) Ligand
Authors: Wei Feng , Ren Chuan‐Li , Wang Dong , Liu Li 
Published: December 2014

AbstractAn enantioselective [3+2] cycloaddition of vinyl cyclopropane derived from 1,3‐indanedione with nitroalkenes catalyzed by palladium(0) with a chiral bis(tert‐amine) ligand was developed in high yields with good diastereoselectivities and excellent enantioselectivities. The resulting bis(tert‐amine)–palladium complex proved to be a highly efficient catalyst for this cycloaddition.
On the Reactivity of Tetrakis(trifluoromethyl)cyclopentadienone towards Carbon‐Based Lewis Bases
Authors: Holle Sigrid , Escudero Daniel , Inés Blanca , Rust Jörg , Thiel Walter , Alcarazo Manuel 
Published: December 2014

AbstractThe reactivitiy of tetrakis(trifluoromethyl)cyclopentadienone towards different C‐based Lewis bases, such as N‐heterocyclic carbenes (NHC), ylides and isonitriles, are reported. While sterically not hindered carbenes were found to yield kinetic adducts by regiospecific nucleophilic attack at the position adjacent to the carbonyl group of the ketone, bulkier nucleophiles afforded the thermodynamically more stable O‐bridged zwitterions. Interestingly, isonitriles were found to dimerize and trimerize under the same reaction conditions, forming bicyclic products that evolve differently depending on the nature of the substituents.
Regenerable Antioxidants—Introduction of Chalcogen Substituents into Tocopherols
Authors: Poon Jia‐fei , Singh Vijay P. , Yan Jiajie , Engman Lars 
Published: December 2014

AbstractTo improve the radical‐trapping capacity of the natural antioxidants, alkylthio‐, alkylseleno‐, and alkyltelluro groups were introduced into all vacant aromatic positions in β‐, γ‐ and δ‐tocopherol. Reaction of the tocopherols with electrophilic chalcogen reagents generated by persulfate oxidation of dialkyl dichalcogenides provided convenient but low‐yielding access to many sulfur and selenium derivatives, but failed in the case of tellurium. An approach based on lithiation of the appropriate bromo‐tocopherol, insertion of chalcogen into the carbon‐lithium bond, air‐oxidation to a dichalcogenide, and final borohydride reduction/alkylation turned out to be generally applicable to the synthesis of all chalcogen derivatives. Whereas alkylthio‐ and alkylseleno analogues were generally poorer quenchers of lipid peroxyl radicals than the corresponding parents, all tellurium compounds showed a substantially improved radical‐trapping activity. Introduction of alkyltelluro groups into the tocopherol scaffold also caused a dramatic increase in the regenerability of the antioxidant. In a two‐phase lipid peroxidation system containing N‐acetylcysteine as a water‐soluble co‐antioxidant the inhibition time was up to six‐fold higher than that recorded for the natural antioxidants.
ChemInform Abstract: Morphotropy and Temperature‐Driven Polymorphism in A2Th(AsO4)2 (A: Li, Na, K, Rb, Cs) Series.
Authors: Yu Na , Klepov Vladislav V. , Modolo Giuseppe , Bosbach Dirk , Suleimanov Evgeny V. , Gesing Thorsten M. , Robben Lars , Alekseev Evgeny V. 
Published: December 2014

AbstractM2Th(AsO4)2 (M: Li, Na, K, Rb, Cs) single crystals are prepared by solid state reaction of Th(NO3)4, NH4H2AsO4, and MNO3 (Pt crucible, 1123—1273 K, controlled cooling).
ChemInform Abstract: Structure and Vibrational Analyses of LiP15.
Authors: Eckstein Nadine , Jantke Laura‐Alice , Faessler Thomas F. , Mink Janos , Drees Markus , Nilges Tom 
Published: December 2014

AbstractThe title compound is synthesized from a stoichiometric mixture of the elements in the presence of CuCl2 as a mineralizer (silica ampule, 823 K, 7 d).
ChemInform Abstract: Thermal Stability and Structures of Gaseous GeB2O4 and GeMo2O7.
Authors: Lopatin Sergey I. , Panin Andrej I. , Shugurov Sergey M. , Emelyanova Ksenia A. 
Published: December 2014

AbstractGaseous GeB2O4 (I) and GeMo2O7 (II) are generated in the vapor phase by electron impact heating of a 1:1 molar mixture of GeO2 and B2O3 or MoO3 and detected by Knudsen effusion mass spectrometry.
ChemInform Abstract: Garratt—Braverman Cyclization on Basic Alumina: A Green Protocol with Improved Selectivity.
Authors: Ghosh Debaki , Biswas Subhanip , Ghosh Koena , Basak Amit 
Published: December 2014

AbstractAryl‐ and hetaryl‐substituted bispropargyl substrates pre‐absorbed on basic alumina undergo Garratt—Braverman cyclization to afford aryl naphthalene derivatives and related compounds.
ChemInform Abstract: 2,6‐Bis(diphenylphosphino)pyridine: A Simple Ligand Showing High Performance in Palladium‐Catalyzed C—N Coupling Reactions.
Authors: Nadri Shirin , Rafiee Ezzat , Jamali Sirous , Joshaghani Mohammad 
Published: December 2014

AbstractAn effective method for the C—N coupling of a variety of aryl halides with anilines, N—heterocyclic aromatic amines, and a cyclic secondary amine is presented using a commercially available ligand and low catalyst loading.
ChemInform Abstract: Palladium‐Catalyzed Insertion of an Allene into an Aminal: Aminomethylamination of Allenes by C—N Bond Activation.
Authors: Hu Jianhua , Xie Yinjun , Huang Hanmin 
Published: December 2014

AbstractA fundamentally novel approach for the synthesis of 1,3‐diamines by aminomethylamination of aromatic allenes with aminals is described.
ChemInform Abstract: Copper‐Catalyzed Regio‐ and Stereoselective O‐Arylation of Enolates.
Authors: Xu Ze‐Feng , Cai Chen‐Xin , Jiang Min , Liu Jin‐Tao 
Published: December 2014

AbstractThe reaction is very efficient with up to 98% yield, the regio‐ and stereoselectivity are excellent, and only O‐arylation product with Z‐configuration is obtained.
ChemInform Abstract: Organocatalytic Enantio‐ and Diastereoselective Conjugate Addition to Nitroolefins: When β‐Ketoamides Surpass β‐Ketoesters.
Authors: Du Haiying , Rodriguez Jean , Bugaut Xavier , Constantieux Thierry 
Published: December 2014

AbstractOptimized conditions including a chiral squaramide catalyst render possible the conjugate addition of β‐ketoamides to nitroolefins to give the corresponding products with high diastereoselectivities and excellent enantioselectivities.
ChemInform Abstract: Aerobic Copper‐Catalyzed Oxidative [6C + 1C] Annulation: An Efficient Route to Seven‐Membered Carbocycles.
Authors: Liu Xiao , Zhang Lingjuan , Xu Xianxiu , Wang Shan , Pan Ling , Zhang Qian , Liu Qun 
Published: December 2014

AbstractAn efficient, excellent diastereoselective and mild method for the construction of seven‐membered carbocycles using readily available starting materials is developed.
ChemInform Abstract: The Direct Synthesis of N‐Alkylated Amides via a Tandem Hydration/N‐Alkylation Reaction from Nitriles, Aldoximes and Alcohols.
Authors: Wang Nana , Zou Xiaoyuan , Ma Juan , Li Feng 
Published: December 2014

AbstractThe iridium‐catalyzed reaction of benzonitrile (I) with n‐butylaldoxime followed by an addition of alcohol (III) and a base to the crude reaction mixture affords benzamides (IV) in high yields.
ChemInform Abstract: Methionine and Buthionine Sulfoximines: Syntheses under Mild and Safe Imidation/Oxidation Conditions.
Authors: Buglioni Laura , Bizet Vincent , Bolm Carsten 
Published: December 2014

AbstractThree improved different routes for the synthesis of the title sulfoximes are presented including single‐step deprotections of three different functionalities.
ChemInform Abstract: One‐Pot Asymmetric Synthesis of Substituted Tetrahydrofurans via a Multicatalytic Benzoin/Michael/Acetalization Cascade.
Authors: He Gu , Wu Fengbo , Huang Wei , Zhou Rui , Ouyang Liang , Han Bo 
Published: December 2014

AbstractThe reaction fails with α‐substituted or γ‐branched enals.
ChemInform Abstract: Silica‐Supported Ceric Ammonium Nitrate Catalyzed Chemoselective Formylation of Indoles.
Authors: Tongkhan Sukanya , Radchatawedchakoon Widchaya , Kruanetr Senee , Sakee Uthai 
Published: December 2014

AbstractA highly reactive formylating species generated from hexamethylenetetramine and CAN on SiO2 allows the conversion of indoles into 3‐formylindoles under mild conditions.
ChemInform Abstract: ZrCl4‐Promoted Facile Synthesis of Indole Derivatives.
Authors: Tummatorn J. , Gleeson M. P. , Krajangsri S. , Thongsornkleeb C. , Ruchirawat S. 
Published: December 2014

AbstractZirconium(IV) chloride effectively activates nitrogen extrusion from aryl azidoacrylates followed by annulation to provide indoles at low temperature and in short reaction times.
ChemInform Abstract: Rh(III)‐Catalyzed Selective Coupling of N‐Methoxy‐1H‐indole‐1‐carboxamides and Aryl Boronic Acids.
Authors: Zheng Jing , Zhang Yan , Cui Sunliang 
Published: December 2014

AbstractRh(III)‐catalyzed coupling of indole carboxamides with various arylboronic acids give either 2‐arylated products (III) and (VII), or [4 + 2]‐cyclized products (IV) and (VIII) depending on the different conditions used.
ChemInform Abstract: Intramolecular Larock Indole Synthesis for the Preparation of Tricyclic Indoles and Its Application in the Synthesis of Tetrahydropyrroloquinoline and Fargesine.
Authors: Gao Yan , Shan Dong , Jia Yanxing 
Published: December 2014

AbstractThis method is applicable for a broad variety of ring sizes including large rings, e.
ChemInform Abstract: Molecular Iodine Mediated Regioselective Synthesis of Pyranocoumarins and Bis‐Fused Benzo‐2H‐pyran Derivatives.
Authors: Majumdar K. C. , Sinha Biswajit , Ansary Inul , Ganai Sintu , Ghosh Debankan , Roy B. , Sridhar B. 
Published: December 2014

AbstractThe synthesis of the starting materials via Sonogashira‐coupling is described.
ChemInform Abstract: Copper‐Catalyzed Enantioselective Hetero‐Diels—Alder Reaction of Danishefsky′s Diene with β,γ‐Unsaturated α‐Ketoesters.
Authors: Hu Yanbin , Xu Kun , Zhang Sheng , Guo Fengfeng , Zha Zhenggen , Wang Zhiyong 
Published: December 2014

AbstractThe first Cu‐catalyzed asymmetric Hetero‐Diels—Alder reaction of β,γ‐unsaturated α‐ketoesters with Danishefsky′s diene under mild reaction conditions is described.
ChemInform Abstract: Laccase/2,2,6,6‐Tetramethylpiperidinoxyl Radical (TEMPO): An Efficient Catalytic System for Selective Oxidations of Primary Hydroxy and Amino Groups in Aqueous and Biphasic Media.
Authors: Diaz‐Rodriguez Alba , Martinez‐Montero Lia , Lavandera Ivan , Gotor Vicente , Gotor‐Fernandez Vicente 
Published: December 2014

AbstractThe reaction can be scaled up.
ChemInform Abstract: Nucleophilic Addition of Lewis Acid Complexed α‐Amino Carbanions to Arynes: Synthesis of 1‐Aryl‐N‐methyl‐1,2,3,4‐tetrahydroisoquinolines.
Authors: Singh Kamal Nain , Singh Paramjit , Sharma Esha , Deol Yadwinder Singh 
Published: December 2014

AbstractThe method is applied to the synthesis of all three alkaloids of Cryptostylis fulva, namely cryptosyline I (IXc), II (IXa) and III (IXb).
ChemInform Abstract: Reaction of N‐Propargylic β‐Enaminones with Acetylene Dicarboxylates: Catalyst‐Free Synthesis of 3‐Azabicyclo[4.1.0]hepta‐2,4‐dienes.
Authors: Goutham Kommuru , Nagaraju Vemu , Suresh Surisetti , Raghavaiah Pallepogu , Karunakar Galla V. 
Published: December 2014

AbstractThe title reaction proceeds under novel and exceptional base‐ and catalyst‐free conditions in a single step.
ChemInform Abstract: Substituted Benzoquinazolinones. Part 1. Synthesis of 6‐Aminobenzo[h]quinazolinones via Buchwald—Hartwig Amination from 6‐Bromobenzo[h]quinazolinones.
Authors: Nowak Monika , Malinowski Zbigniew , Jozwiak Andrzej , Fornal Emilia , Blaszczyk Alina , Kontek Renata 
Published: December 2014

AbstractCompound (IIIb) is highly cytotoxic to HT29 cancer cells and only weakly toxic to normal lymphocytes.
ChemInform Abstract: CuO Nanoparticles Catalyzed Simple and Efficient Synthesis of 2,3‐Dihydroquinazolin‐4(1H)‐ones and Quinazolin‐4(3H)‐ones under Ultrasound Irradiation in Aqueous Ethanol under Ultrasound Irradiation in Aqueous Ethanol.
Authors: Zhang Jin , Ren Decheng , Ma Yangmin , Wang Weitao , Wu Hao 
Published: December 2014

AbstractThe catalyst can be recycled and reused at least 4 times without a significant loss in activity.
ChemInform Abstract: Asymmetric Synthesis of Stable α‐Aminoboronic Esters Catalyzed by N‐Heterocyclic Carbene and Copper(I) Chloride.
Authors: Chen Jinbo , Chen Ling‐yan , Zheng Yue , Sun Zhihua 
Published: December 2014

AbstractThe title synthesis produces a large scope of aliphatic and aromatic substituted α‐aminoboronic esters with a high degree of diastereoselectivity and good to excellent yields.
ChemInform Abstract: Targeted Synthesis of 2,3‐Disubstituted 2‐Phospholenes Using Catalytic Cycloalumination of Acetylenes.
Authors: D'yakonov Vladimir A. , Makhamatkhanova Alevtina L. , Agliullina Rina A. , Tyumkina Tat'yana V. , Dzhemilev Usein M. 
Published: December 2014

AbstractAluminacyclopentenes generated in situ from acetylenes and triethylaluminium react with phosphorous dihalides to give phospholenes (IV), which can be easily converted into the corresponding oxides and sulfides upon treatment with H2O2 or elemental sulfur.
ChemInform Abstract: A New Dihydrooxazole Antibiotic from the Fermentation Broth of Streptomyces djakartensis.
Authors: Wu Wen‐Jun , Zhang Ji‐Wen , Zhang Wen‐Juan , Wei Shao‐Peng 
Published: December 2014

AbstractThe new antibiotic (I) is isolated from the fermentation broth of Streptomyces djakartensis by bioassay‐guided fractionation.
Direct Arylation of Substituted Pyridines with Arylboronic Acids Catalyzed by Iron(II) Oxalate
Authors: Huang Yibo , Guan Dan , Wang Liang 
Published: December 2014

AbstractThe direct arylation of substituted pyridines with several arylboronic acids has been developed. This transformation could proceed readily at ambient temperature using inexpensive reagents: iron(II) oxalate as a catalyst, potassium persulfate as a co‐oxidant, which can afford the arylated products in mild to good yields. The mechanism is presumed to proceed through a nucleophilic radical addition to the pyridines with in situ reoxidation.
Design, Synthesis and Characterization of Coordination Polymer from [Cu(DMF)4(SCN)2] as a Precursor
Authors: Liu Xiaotong , Zhou Feng , Zhou Qiuxuan , Wang Lihua , Zhang Yong , Xu Qingfeng , Lu Jianmei 
Published: December 2014

AbstractThis paper is focused on investigation of coordination polymers constructed by Cu(II) and rigid pyridyl ligands, such as 4,4′‐bipyridyl‐1,2,4‐triazole (Hpytz) and 1,10‐phenanthroline (phen) from a mononuclear precursor [Cu(DMF)4(NCS)2] (1). As expected, the complex was self‐assembled with phen to form a 1D double‐stranded chain of [Cu(phen)(µ‐SCN)2]∞ (2), with Hpytz to form 1D zigzag chain of [Cu2(µ‐Hpytz)2(NCS)2(DMF)2(µ‐SCN)2]∞ (3) in which thiocyanate anion linked the Cu‐µ‐Hpytz‐Cu chain into an infinite 2D network via weak Cu···S interaction. To treat 3 with the bridged anion dca, a novel 3D framework [Cu(µ‐Hpytz)(µ‐dca)(µ‐SCN)] ∞ (4) was obtained in which Cu‐µ‐Hpytz‐Cu chain is preserved and both thiocyanate anion and dicyanamide (dca) act as bridging ligands. In addition, complex 3 was applied as a metal catalyst in polymerization of MMA in aqueous solution at room temperature.
Preparation of Thermosensitive Hollow Imprinted Microspheres via Combining Distillation Precipitation Polymerization and Thiol‐ene Click Chemistry
Authors: Guo Cong , Wang Bing , Shan Juanjuan 
Published: December 2014

AbstractHollow molecular imprinted polymer microspheres were prepared by distillation precipitation polymerization with (S)‐(+)‐ibuprofen (S‐IBF) as template molecule and acrylamide (AM) as functional monomer. Using the silicon dioxide (SiO2, 180 nm) modified by 3‐(trimethoxysilyl)propyl methacrylate (MPS) as the template microspheres, the molecular imprinted shells were coated on successfully (SiO2@MIPs). The thermosensitive SiO2@MIPs‐PNIPAM core‐shell microspheres were subsequently prepared by grafting the PNIPAM chains (Mn=1.21×104 g/mol, polydispersity index=1.30), which were prepared by reversible addition‐fragmentation chain transfer (RAFT) polymerization, on the surface of SiO2@MIPs microspheres via the thiol‐ene click chemistry. The grafting density of PNIPAM brushes on the SiO2@MIPs microspheres was about 0.18 chains/nm2. After HF etching, the hollow imprinted microspheres were finally obtained. For thermosensitivity analysis, the phase transition temperatures of multifunctional nanoparticles were measured by DSL at 25°C and 45°C respectively, and the sizes of the microspheres changed by about 35 nm. The modified microspheres presented excellent controlled release property to S‐IBF, moreover about half amount of the adsorptions passed into acetonitrile‐water solution through the specific holes of imprinted shell at 25°C under vibration.
Monte Carlo Simulations of the Phase Separation of a Copolymer Blend in a Thin Film
Authors: Wang Zhexiao , Shao Jing , Pan Heng , Feng Xiaoshuang , Chen Peng , Xia Ru , Wu Xiangsong , Qian Jiasheng 
Published: December 2014

AbstractMonte Carlo simulations were carried out to study the phase separation of a copolymer blend comprising an alternating copolymer and/or block copolymer in a thin film, and a phase diagram was constructed with a series of composed recipes. The effects of composition and segregation strength on phase separation were discussed in detail. The chain conformation of the block copolymer and alternating copolymer were investigated with changes of the segregation strength. Our simulations revealed that the segment distribution along the copolymer chain and the segregation strength between coarse‐grained beads are two important parameters controlling phase separation and chain conformation in thin films of a copolymer blend. A well‐controlled phase separation in the copolymer blend can be used to fabricate novel nanostructures.