<em>β</em>-环糊精和遥爪聚合物C-PDMAEMA的包结行为

引用本文: 江金强, 姜韬, 张成邦, 成浩, 刘晓亚, 张胜文, 陈明清. β-环糊精和遥爪聚合物C-PDMAEMA的包结行为[J]. 物理化学学报, 2011, 27(11): 2691-2696. doi: 10.3866/PKU.WHXB20111019 shu

Citation: JIANG Jin-Qiang, JIANG Tao, ZHANG Cheng-Bang, CHENG Hao, LIU Xiao-Ya, ZHANG Sheng-Wen, CHEN Ming-Qing. Inclusion Behavior of β-Cyclodextrin and Amphiphilic Telechelic Polymer C-PDMAEMA[J]. Acta Physico-Chimica Sinica, 2011, 27(11): 2691-2696. doi: 10.3866/PKU.WHXB20111019 shu

β-环糊精和遥爪聚合物C-PDMAEMA的包结行为

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

江苏省高校&ldquo

青蓝工程&rdquo

及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)复合体系为链转移剂, 甲基丙烯酸-N,N-二甲氨基乙酯(DMAEMA)为单体, 偶氮二异丁腈(AIBN)为引发剂制备了末端为香豆素光响应基元的双亲性遥爪聚合物(C-PDMAEMA). 用傅里叶变换红外(FTIR)光谱仪、凝胶渗透色谱(GPC)、核磁共振氢谱(¹H-NMR)等对该聚合物进行了结构表征. 并用紫外-可见吸收光谱和荧光光谱及光二聚反应考察了β-环糊精与香豆素端基的包结络合行为. 研究表明: β-环糊精与香豆素端基是以1:1 形式进行包结, 其包结常数K=(1.270±0.062)×10⁴ L·mol^-1;光二聚反应实验表明该包结络合作用处于一快速平衡中, 其对香豆素端基光二聚反应的影响甚微.

关键词:

香豆素
/ 环糊精
/ 包结络合
/ 遥爪
/ 光二聚

English

Inclusion Behavior of β-Cyclodextrin and Amphiphilic Telechelic Polymer C-PDMAEMA

1.
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P. R. China
Received Date: 31 May 2011
Available Online: 27 October 2011
Fund Project:
国家自然科学基金(20704017, 50973044)

江苏省高校&ldquo

青蓝工程&rdquo

及中央高校基本科研业务费专项资金(JUSRP31003)资助项目

Abstract: A novel photosensitive telechelic polymer C-PDMAEMA was prepared using 2-(dimethylamino) ethyl methacrylate (DAMEMA) as a monomer, azobisisobutyronitrile (AIBN) as inititon, coumarincontaining disulfides (C-S-S-C) as a chain transfer agent in the presence of tributyl phosphine (Bu₃P) and water. Characterization was carried out using ¹H-nuclear magnetic responance (¹H-NMR), gel permeation chromatography (GPC) and Fourier transform infrared (FTIR) spectroscopy. It was found that the coumarin can form a host-guest inclusion complex with β-CD in aqueous solution. The UV-Vis and fluorescence spectra showed that only a 1:1 complex was formed with an inclusion complex K=(1.270±0.062)×10⁴ L· mol^-1. The irradiation experiment showed that this host-guest inclusion might have a very small effect on the photodimerization of coumarin end groups.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

β-环糊精和遥爪聚合物C-PDMAEMA的包结行为

English

Inclusion Behavior of β-Cyclodextrin and Amphiphilic Telechelic Polymer C-PDMAEMA

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

β-环糊精和遥爪聚合物C-PDMAEMA的包结行为

English

Inclusion Behavior of β-Cyclodextrin and Amphiphilic Telechelic Polymer C-PDMAEMA

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

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CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

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