Synthesis of homo- and copolymer containing sulfonic acid via atom transfer radical polymerization.

IF 2.3 4区化学 Q3 POLYMER SCIENCE

Designed Monomers and Polymers Pub Date : 2022-09-19 eCollection Date: 2022-01-01 DOI:10.1080/15685551.2022.2126092

Md Wali Ullah, Naoki Haraguchi, Md Azgar Ali, Md Rabiul Alam, Samiul Islam Chowdhury

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引用次数: 1

Abstract

Well-defined functional poly(p-phenyl styrenesulfonate) and poly(p-phenyl styrene-sulfonate-co-styrene) were successfully synthesized by the atom transfer radical polymerization (ATRP) using CuBr/bpy(PMDETA) catalyst and 1-phenylethyl bromide (1-PEBr) as an ATRP initiator in diphenyl ether (DPE) or dimethyl formamide (DMF). In both homo- and copolymers, the CuBr/PMDETA catalytic system in DPE or DME showed higher yield than CuBr/bpy and the polydispersity index (PDI) of polymer was low. Using PMDETA or bpy as a ligand in DMF, the high yield with high PDI was obtained than in DPE. We found that the CuBr/PMDETA catalyzed ATRP of p-phenyl styrenesulfonate and copolymerization with styrene comonomer in DPE proceeded in a controlled manner. The polymers containing sulfonic acid were obtained by the chemical deprotection of protecting group, followed by acidification. The molecular structure, molecular weights and thermal properties of the copolymers were determined by nuclear magnetic resonance (¹H NMR) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, size exclusion chromatography (SEC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively.

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原子转移自由基聚合法合成含磺酸的同聚物和共聚物。

以二苯醚(DPE)或二甲基甲酰胺(DMF)为原料，以CuBr/bpy(PMDETA)为催化剂，以1-苯乙基溴(1-PEBr)为引发剂，采用原子转移自由基聚合(ATRP)法制备了功能明确的聚(对苯基苯乙烯磺酸盐)和聚(对苯基苯乙烯磺酸-co-苯乙烯)。在同属和共聚物中，在DPE或DME中，CuBr/PMDETA催化体系的产率均高于CuBr/bpy，聚合物的多分散性指数(PDI)较低。在DMF中采用PMDETA或bpy作为配体，可以获得比在DPE中更高的收率和更高的PDI。我们发现CuBr/PMDETA催化对苯乙烯磺酸的ATRP和与苯乙烯共聚单体在DPE中的共聚是可控的。通过对保护基团进行化学脱保护，再进行酸化，得到含磺酸聚合物。分别采用核磁共振(1H NMR)谱、傅里叶变换红外(FT-IR)谱、粒径排阻色谱(SEC)、差示扫描量热法(DSC)和热重分析(TGA)测定共聚物的分子结构、分子量和热性能。

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来源期刊

Designed Monomers and Polymers 化学-高分子科学

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

2.1 months

期刊介绍： Designed Monomers and Polymers ( DMP) publishes prompt peer-reviewed papers and short topical reviews on all areas of macromolecular design and applications. Emphasis is placed on the preparations of new monomers, including characterization and applications. Experiments should be presented in sufficient detail (including specific observations, precautionary notes, use of new materials, techniques, and their possible problems) that they could be reproduced by any researcher wishing to repeat the work. The journal also includes macromolecular design of polymeric materials (such as polymeric biomaterials, biomedical polymers, etc.) with medical applications. DMP provides an interface between organic and polymer chemistries and aims to bridge the gap between monomer synthesis and the design of new polymers. Submssions are invited in the areas including, but not limited to: -macromolecular science, initiators, macroinitiators for macromolecular design -kinetics, mechanism and modelling aspects of polymerization -new methods of synthesis of known monomers -new monomers (must show evidence for polymerization, e.g. polycondensation, sequential combination, oxidative coupling, radiation, plasma polymerization) -functional prepolymers of various architectures such as hyperbranched polymers, telechelic polymers, macromonomers, or dendrimers -new polymeric materials with biomedical applications