文献类型：期刊文献

中文题名：Integrating Main-Chain and Side-Chain Engineering in Polymers for Enhanced Photocatalytic Hydrogen Production

英文题名：主链-侧链协同工程增强聚合物光催化产氢

作者：TIAN Changhao[1];LIU Xueyan[1];YU Miaojie[1];WU Yongzhen[1];CHE Yu[2];ZHANG Weiwei[1];ZHU Weihong[1]

机构：[1]School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China;[2]Institute of Resources and Environmental Engineering,Shanxi University,Taiyuan 030006,China

年份：2025

卷号：38

期号：3

起止页码：216

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：;北大核心:【北大核心2023】；

基金：国家自然科学基金(T2488302,22422805,22338006,92356301,9235630033,22375062);上海市科学技术委员会(24DX1400200,24160711900);上海市基础研究试点项目(22TQ1400100-10);中央高校基本科研业务费专项资金;上海市教育发展基金会、市教委“晨光计划”项目(22CGA32);CAST青年精英科学家资助项目(2023QNRC001)。

语种：英文

中文关键词：organic semiconductor;polymer photocatalyst;main-chain engineering;side-chain engineering;photocatalytic hydrogen evolution

外文关键词：有机半导体;聚合物光催化剂;主链工程;侧链工程;光催化析氢

摘要：Traditional polymeric photocatalysts are typically constructed using aromatic building blocks to enhanceπ-conjugation.However,their inherent hydrophobicity and rigid structure lead to poor dispersibility in aqueous solutions,resulting in significant optical losses and exciton recombination.In this study,two series of six novel polymer photocatalysts(FLUSO,FLUSO-PEG10,FLUSO-PEG30;CPDTSO,CPDTSO-PEG10,CPDTSO-PEG30)are designed and synthesized by incorporating the hydrophilic,non-conjugated polyethylene glycol(PEG)chain,into both the main and side chains of polymers.By precisely optimizing the ratio of hydrophilic PEG segments,the water dispersibility is significantly improved while the light absorption capability of the polymer photocatalysts is well maintained.The experimental results confirm that the optimized FLUSO-PEG10 exhibits excellent photocatalytic hydrogen evolution rate,reaching up to 33.9 mmol/(g·h),which is nearly three times higher than that of fullyπ-conjugated counterparts.Water contact angles and particle size analyses reveal that incorporating non-conjugated segments into the main chains enhances the capacitance of the polymer/water interface and reduces particle aggregation,leading to improved photocatalyst dispersion and enhanced charge generation.
传统聚合物光催化剂通常采用芳香环构建基元以增强π共轭,然而其固有的疏水性和刚性结构导致其在水溶液中分散性较差,进而引发显著光学损失和激子复合。本研究创新性地将亲水性非共轭聚乙二醇(PEG)链段引入聚合物主链和侧链,设计并合成了2个系列共6种新型聚合物光催化剂(FLUSO,FLUSO-PEG10,FLUSO-PEG30;CPDTSO,CPDTSO-PEG10,CPDTSOPEG30)。通过精确调控PEG链段的摩尔分数,在保持聚合物吸收能力的同时显著改善水分散性。实验结果显示优化后的FLUSO-PEG10表现出优异的光催化析氢速率,达到33.9 mmol/(g·h),较全共轭对应物提升近3倍。水接触角和粒径分析进一步证实,在主链中引入非共轭链段可增强聚合物/水界面相容性,抑制颗粒聚集,从而提升光催化剂的分散性,并促进电荷生成。