## 2 Results  
Four samples of HPS were synthesized using different porogenes: alcohol C7, polystyrene (PS), and oil fractions (OF2 and OF3). HPS samples were characterized by the method of low-temperature nitrogen physisorption, X-ray photoelectron spectroscopy (XPS), X-ray Fluorescence Analysis (XFA), diffuse reflectance infrared spectroscopy (DRIFT), and scanning electron microscopy (SEM). The results of low-temperature nitrogen physisorption for all samples are presented in Figures 2 and 3. As can be seen, two samples, C7 and OF2, have mesoporous structure, while the others (PS and OF3) have predominant microporosity [26]. The values of the  
Figure 1: Simplified scheme of MBY transformation to isophytol (IP)—so-called “acetylenic process” (**a**) and scheme of MNY hydrogenation (**b**). specific surface area (SSA) of C7 and OF2 are 490 \(\pm\) 10 m\({}^{2}\)/g and 700 \(\pm\) 14 m\({}^{2}\)/g (calculated according to the BET model), respectively. The SSA values of PS and OF3 are 680 \(\pm\) 14 m\({}^{2}\)/g and 720 \(\pm\) 14 m\({}^{2}\)/g, respectively. The following values of the micropore volume were found: 0.12 mL/g (C7), 0.15 mL/g (OF2), 0.18 mL/g (PS), and 0.20 mL/g (OF3). The indicated values comprise 15.8%, 15.5%, 37.5%, and 37.2% of the total pore volume of each sample, respectively. Synthesized polymers were used as supports for Pd deposition by the wet-impregnation method (see Section 3). Catalysts were designated as Pd/C7 (0.11 wt.% Pd, according to the data of _XFA_), Pd/PS (0.16 wt.% Pd), PdOF2 (0.11 wt.% Pd), and Pd/OF3 (0.17 wt.% Pd). Low-temperature nitrogen physisorption (see Figures 2 and 3 and Table S1) revealed that after Pd deposition, SSA and porosity have not changed significantly. Mean diameter of mesopores in the Pd/C7 and Pd/OF2 catalysts remains unchanged (about 25 nm), for the initial polymer supports. So, we conclude that the observed differences in BET SSA and porosity after impregnation are negligible, which is logical due to the very low amount of Pd deposited (<0.2 wt.%). Note that all these values were obtained ex situ for the dry polymeric networks and catalysts, while the swelling occurs in situ under hydrogenation conditions in toluene medium, which additionally smooths the observed differences. However, the general trend of porosity influence can be revealed while comparing \"microporous\" and \"mesoporous\" samples. Figure 2: Adsorption–desorption isotherms: (**a**) C7 and Pd/C7; (**b**) OF2 and Pd/OF2; (**c**) PS and Pd/PS; (**d**) OF3 and Pd/OF3. _DRIFT_ spectra of the synthesized polymers are presented in Figure 4. It is noteworthy that all the spectra were normalized; the chosen band at 2922 cm\({}^{-1}\) corresponds to the stretching vibrations of the alkanes (\(\
u_{\text{C-H}}\)). For all the HPS samples, the following main adsorption bands were found: \(\
u_{\text{C-H}}\) of alkanes (2922 cm\({}^{-1}\) and 2858 cm\({}^{-1}\)) and \(\delta_{\text{C-H}}\) of alkanes (1450 cm\({}^{-1}\) and 1421 cm\({}^{-1}\)), \(\
u_{\text{C-H}}\) of benzene rings (3020 cm\({}^{-1}\)), \(\
u_{\text{C-O}}\) in CO\({}_{2}\) (about 2357 cm\({}^{-1}\) and 2337 cm\({}^{-1}\)), \(\
u_{\text{C-O}}\) of carbonyl carbon (1699-1707 cm\({}^{-1}\)), \(\
u_{\text{C-C}}\) of benzene rings (1605 cm\({}^{-1}\) and 1508 cm\({}^{-1}\)), and carboxyl \(\
u_{\text{C-O}}\) in carboxylic groups (a broad asymmetric peak in the range of 3500-2500 cm\({}^{-1}\)), \(\
u_{\text{C-O}}\) in carboxyl groups (1306 cm\({}^{-1}\)), in-plane vibrations \(\delta_{\text{C-H}}\) of benzene rings in the range of 1250-950 cm\({}^{-1}\) (of no practical importance), and out-of-plane vibrations \(\delta_{\text{C-H}}\) of benzene rings in the range of 900-650 cm\({}^{-1}\) (characterizing mono-, di-, and trisubstituted benzene rings). C7 is the sole only sample, which has obvious differences in the _DRIFT_ spectrum, i.e., higher intensity of the band corresponding to \(\
u_{\text{-OH}}\) in the hydroxyl groups (3650 cm\({}^{-1}\) and 3570 cm\({}^{-1}\)), which can be due to alcohol utilized as porogen.