光敏感遥爪聚合物——聚4-乙烯基吡啶的制备及其溶液性质

引用本文: 江金强, 强婧, 倪忠斌, 宋晓青, 张红武, 刘晓亚, 陈明清. 光敏感遥爪聚合物——聚4-乙烯基吡啶的制备及其溶液性质[J]. 物理化学学报, 2011, 27(03): 664-670. doi: 10.3866/PKU.WHXB20110238 shu

Citation: JIANG Jin-Qiang, QIANG Jing, NI Zhong-Bin, SONG Xiao-Qing, ZHANG Hong-Wu, LIU Xiao-Ya, CHEN Ming-Qing. Synthesis and Solution Properties of the Photo-Sensitive Telechelic Polymer——Coumarin-Containing Poly(4-vinylpyridine)[J]. Acta Physico-Chimica Sinica, 2011, 27(03): 664-670. doi: 10.3866/PKU.WHXB20110238 shu

光敏感遥爪聚合物——聚4-乙烯基吡啶的制备及其溶液性质

基金项目:
国家自然科学基金(20704017, 50973044) (20704017, 50973044)

江苏青蓝工程和中央高校基本科研业务费专项资金(JUSRP31003)资助项目 (JUSRP31003)

摘要:

以香豆素二硫化物(C-S-S-C)/三丁基膦(Bu₃P)/H₂O复合体系为链转移剂, 偶氮二异丁腈(AIBN)为引发剂, 4-乙烯基吡啶为单体制备了末端含有疏水性香豆素光响应基元的光敏感遥爪聚合物(聚4-乙烯基吡啶(C-P4VP)). 用傅里叶变换红外(FTIR)光谱、凝胶渗透色谱(GPC)、氢核磁共振(¹H-NMR)等对该聚合物进行了结构表征. 研究显示该遥爪聚合物可在不同pH值(pH=3-6)的酸性水溶液中自组装成胶束, 且随体系酸值的降低, 聚合物胶束结构由松散变为紧密, 同时香豆素端基的光二聚反应程度呈现先下降后上升的趋势.

关键词:

English

Synthesis and Solution Properties of the Photo-Sensitive Telechelic Polymer——Coumarin-Containing Poly(4-vinylpyridine)

1.
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P. R. China
Received Date: 06 September 2010
Available Online: 03 March 2011
Fund Project:
国家自然科学基金(20704017, 50973044)

江苏青蓝工程和中央高校基本科研业务费专项资金(JUSRP31003)资助项目

Abstract:

A novel photo-sensitive telechelic polymer——coumarin-containing poly(4-vinylpyridine) (C- P4VP) was prepared using 4-vinylpyridine as a monomer, azodiiso-butyronile (AIBN) as an initiator, and coumarin-containing disulfides (C-S-S-C) as a chain transfer agent in the presence of tributylphosphine (Bu₃P)/H₂O. The polymer was characterized by Fourier transform infrared (FTIR) spectroscopy, ¹H nuclear magnetic resonance (¹H-NMR), and gel permeation chromatography (GPC). We found that the telechelic polymer can form polymer micelles in aqueous solutions at various pH values (pH=3-6). Additionally, when lowering the acidity of the aqueous solution, the polymer micelles gradually compacted and the degree of coumarin photo-dimerization decreased initially and then increased within a similar irradiation time.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

光敏感遥爪聚合物——聚4-乙烯基吡啶的制备及其溶液性质

English

Synthesis and Solution Properties of the Photo-Sensitive Telechelic Polymer——Coumarin-Containing Poly(4-vinylpyridine)

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

光敏感遥爪聚合物——聚4-乙烯基吡啶的制备及其溶液性质

English

Synthesis and Solution Properties of the Photo-Sensitive Telechelic Polymer——Coumarin-Containing Poly(4-vinylpyridine)

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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