Synthesis and properties of a functional copolymer from N-ethylaniline and aniline by an emulsion polymerization
Synthesis and properties of a functional copolymer from N-ethylaniline and aniline by an emulsion polymerization
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DOI：
10.1016/j.polymer.2004.12.021
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发表时间：
2005-02-14
期刊：
影响因子：
4.6
通讯作者：
Huang, MR
中科院分区：
文献类型：
--
作者：
Li, XG;Zhou, HJ;Huang, MR
以十二烷基苯磺酸钠为催化剂，N-乙基苯胺（EA）和苯胺（AN）在盐酸介质中进行乳液聚合，合成了一系列功能性共聚物。通过改变共聚单体比、乳化剂/单体比、氧化剂/单体比、溶剂和温度等条件，系统研究了聚合物的聚合产率、分子量、溶解性、成膜性、溶剂化变色性、热变色性和可变电导率等重要聚合物参数。通过红外光谱和紫外-可见光谱对所得共聚物进行了详细的表征。结果表明，这些共聚物具有窄的分子量分布、良好的溶解性、优异的膜柔韧性、在各种溶剂中的彩色溶致变色性、在宽的温度范围内的可逆热致变色性以及在2.03 × 10 ~（-10）~ 0. 161 S/cm。(C)2004爱思唯尔有限公司保留所有权利。
A series of functional copolymers was synthesized by an emulsion polymerization of N-ethylaniline (EA) and aniline (AN) in the presence of sodium dodecylbenzene sulfonate in HCl. Several important polymer parameters including the polymerization yield, molecular weight, solubility, film formability, solvatochromism, thermochromism, and alterable electrical conductivity were systematically studied by changing the comonomer ratio, emulsifier/monomer ratio, oxidant/monomer ratio, solvent, and temperature. The resulted copolymers were characterized in detail by infrared and UV-vis spectroscopies. It is found that these copolymers exhibit narrow molecular weight distribution, good solubility, excellent film flexibility, colorful solvatochromism, in various solvents, reversible thermochromism in a wide temperature range, and widely controllable conductivity from 2.03 X 10(-10) to 0. 161 S/cm with changing the polymerization conditions and doping states. (C) 2004 Elsevier Ltd. All rights reserved.