Polymer Science, Series C最新文献_第7页

Molecular Switch Based on a Linear Macromolecule Inserted in a Second-Generation Dendron Brush 基于二代树突刷插入线性大分子的分子开关

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-08-31 DOI: 10.1134/S1811238222700114

A. A. Polotsky, T. M. Birshtein

引用次数: 0

Polyvinylidene Fluoride Copolymers with Grafted Polyethyl Methacrylate Chains: Synthesis and Thermal and Dielectric Properties 接枝聚甲基丙烯酸乙酯链聚偏氟乙烯共聚物的合成及其热介电性能

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-08-31 DOI: 10.1134/S1811238222700138

E. A. Kleimyuk, A.I. Kosyakova, A. I. Buzin, V. G. Shevchenko, Yu. N. Luponosov, S. A. Ponomarenko

引用次数: 0

Ferrocenyl-Containing Oligosiloxanes and Polysiloxanes: Synthesis, Properties, and Application 含二茂铁的低聚硅氧烷和聚硅氧烷:合成、性能和应用

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-08-31 DOI: 10.1134/S1811238222700096

K. V. Deriabin, R. M. Islamova

引用次数: 2

Self-assembly of Polyfluorene Molecular Brushes with Poly(methacrylic acid) Side Chains in Ethanol and Water 带聚甲基丙烯酸侧链的聚芴分子刷在乙醇和水中的自组装

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-08-31 DOI: 10.1134/S181123822270014X

M. A. Simonova, D. M. Ilgach, K. I. Kaskevich, M. I. Nepomnyashaya, L. S. Litvinova, A. P. Filippov, A. V. Yakimansky

引用次数: 0

Effect of the Structure of Arms and Way of Their Attachment to Calix[4]arene on Self-Assembly Processes in Aqueous Solutions of Thermoresponsive Star-Shaped Poly(2-alkyl-2-oxazolines) and Poly(2-alkyl-2-oxazines) 臂的结构及其与 Calix[4]arene 的连接方式对热致伸缩性星形聚（2-烷基-2-恶唑啉）和聚（2-烷基-2-恶嗪）水溶液中自组装过程的影响

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-08-31 DOI: 10.1134/S1811238222700102

T. Yu. Kirila, A. B. Razina, A. V. Ten’kovtsev, A. P. Filippov

引用次数: 0

Effect of Annealing at High Temperatures on the Morphology of Aqueous Solutions of Star-Shaped Poly(2-Isopropyl-2-Oxazoline) and Linear Poly(2-Ethyl-5,6-Dihydrooxazine) 高温退火对星形聚(2-异丙基-2-恶唑啉)和线型聚(2-乙基-5,6-二氢恶嗪)水溶液形貌的影响

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-07-08 DOI: 10.1134/S1811238222700072

A. V. Smirnova, A. V. Tenkovtsev, A. P. Filippov

引用次数: 0

Synthesis and Properties of Polymer Photonic Crystals Based on Core–Shell Particles 基于核壳粒子的聚合物光子晶体的合成与性能研究

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-07-08 DOI: 10.1134/S1811238222700084

N. N. Shevchenko, B. M. Shabsel’s, D. I. Iurasova, Yu. O. Skurkis

引用次数: 1

Polymerization of Micelle-Forming Monomers 胶束形成单体的聚合

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-07-08 DOI: 10.1134/S1811238222700060

I. M. Zorin, N. A. Zorina, P. A. Fetin

引用次数: 0

Amphiphilic ABA-Type Block–Graft Molecular Brushes Based on Polyimide 基于聚酰亚胺的两亲aba型嵌段接枝分子刷

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-06-29 DOI: 10.1134/S1811238222700047

I. V. Ivanov, A. V. Kashina, N. V. Kukarkina, A. V. Yakimansky

{"title":"Amphiphilic ABA-Type Block–Graft Molecular Brushes Based on Polyimide","authors":"I. V. Ivanov, A. V. Kashina, N. V. Kukarkina, A. V. Yakimansky","doi":"10.1134/S1811238222700047","DOIUrl":"10.1134/S1811238222700047","url":null,"abstract":"New amphiphilic ABA-type molecular brushes of mixed block–graft topology, where the central block B is a molecular brush with a hydrophobic polyimide backbone and hydrophilic side chains of poly(methacrylic acid) and A blocks are peripheral hydrophobic chains of poly(methyl methacrylate), have been synthesized. For the synthesis of the copolymers, an approach based on a combination of atom transfer radical polymerization (ATRP) and click chemistry in the variant of Cu(I)-catalyzed azide–alkyne cycloaddition was proposed. To implement the proposed approach, a procedure was developed for the synthesis of heterofunctional polyimide macroinitiators containing ATRP-initiating groups in each unit and terminal alkynyl groups capable of participating in the “click” reaction. Further, the synthesis of well-defined block–graft ABA molecular brushes was carried out using such initiators. First, peripheral poly(methyl methacrylate) chains were synthesized in a controlled mode using ATRP, followed by their functionalization with azide groups. Then, using the click chemistry approach, these chains were grafted to the terminal alkynyl groups of the heterofunctional initiator. The hydrophilic side chains were introduced into block B using the “grafting from” ATRP method in several steps through the intermediate formation of a regularly grafted prepolymer with poly(tert-butyl methacrylate) side chains. At the last step, as a result of selective acid hydrolysis of the side-chain ester groups in block B, amphiphilic multicomponent brushes with hydrophilic poly(methacrylic acid) units in the side chains were obtained. The possibility of sequential and simultaneous ATRP and click reaction has been examined.","PeriodicalId":740,"journal":{"name":"Polymer Science, Series C","volume":"64 2","pages":"219 - 231"},"PeriodicalIF":2.2,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5121631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Attempts to Optimizing the Synthesis of Hypercrosslinked Polystyrene. 1. Crosslinking with Monochlorodimethyl Ether 超交联聚苯乙烯合成工艺优化的尝试。与一氯二甲醚交联

IF 2.2 4区化学

Polymer Science, Series C Pub Date : 2022-06-29 DOI: 10.1134/S1811238222700059

M. P. Tsyurupa, Z. K. Blinnikova, Yu. A. Davidovich, M. M. Ilyin, V. A. Davankov

{"title":"Attempts to Optimizing the Synthesis of Hypercrosslinked Polystyrene. 1. Crosslinking with Monochlorodimethyl Ether","authors":"M. P. Tsyurupa, Z. K. Blinnikova, Yu. A. Davidovich, M. M. Ilyin, V. A. Davankov","doi":"10.1134/S1811238222700059","DOIUrl":"10.1134/S1811238222700059","url":null,"abstract":"This contribution was focused on the developing of an improved method for preparing hypercrosslinked polystyrene by bridging styrene-0.5% DVB copolymer with monochlorodimethyl ether (MCDE) up to 100, 150, 200 and 300% via Fidel–Crafts reaction. The modification comprises both the reduction in the consumption of the catalyst, SnCl4, and the complete substitution of SnCl4 with the more active and less expensive catalyst, FeCl3. Reducing the SnCl4 quantity from 1.0 to 0.1 mol per one mole of the ether leads to the formation of hypercrosslinked networks which exhibit a quite good swelling in non-solvents, rater low apparent density, and a noticeable pore volume, but, surprisingly, to a dramatic reduction in the measured inner surface area. The latter finding could be explained by the formation in the networks with very narrow pores which remain inaccessible to the testing argon atoms. The situation changes cardinally if the reaction mixture is additionally provided with oxalyl chloride (0.5 mol per mol of the ether) which reacts with methanol at the moment of its formation during the reaction of the ether with polystyrene. The latter reaction proceeds so violently that it is possible to reduce the amount of SnCl4 by a factor of at least 13 or diminish the essential portion of FeCl3 by a factor of 30, compared to the recommended previously 0.3 mol FeCl3 per one mole of the MCDE.","PeriodicalId":740,"journal":{"name":"Polymer Science, Series C","volume":"64 2","pages":"75 - 81"},"PeriodicalIF":2.2,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5121048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0