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[1]顾铭茜,陈洪龄.可聚合乳化剂用于氨基改性有机硅微乳液制备[J].南京工业大学学报(自然科学版),2016,38(02):107-113.[doi:10.3969/j.issn.1671-7627.2016.02.020]
 GU Mingxi,CHEN Hongling.Preparation of amino modified polysiloxane microemulsion with polymerizable emulsifier[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(02):107-113.[doi:10.3969/j.issn.1671-7627.2016.02.020]
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可聚合乳化剂用于氨基改性有机硅微乳液制备()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年02期
页码:
107-113
栏目:
出版日期:
2016-04-10

文章信息/Info

Title:
Preparation of amino modified polysiloxane microemulsion with polymerizable emulsifier
文章编号:
1671-7627(2016)02-0107-07
作者:
顾铭茜陈洪龄
南京工业大学 化工学院,江苏 南京 210009
Author(s):
GU MingxiCHEN Hongling
College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
四甲基四乙烯基环四硅氧烷 氨基改性 可聚合乳化剂 微乳液
Keywords:
tetramethyltetravinylcylcotetrasiloxane amino modification polymerizable emulsifier
分类号:
TQ264.1
DOI:
10.3969/j.issn.1671-7627.2016.02.020
文献标志码:
A
摘要:
以八甲基环四硅氧烷(D4)和四甲基四乙烯基环四硅氧烷(DVi4)为反应原料,十六烷基三甲基溴化铵(CTAB)和可聚合乳化剂烯丙基聚氧乙烯醚(APEG)复配作为乳化剂,γ-氨丙基三乙氧基硅烷为改性剂,采用乳液聚合法制备氨基改性有机硅微乳液。考察乳化剂种类和用量、单体质量比等反应条件对微乳液性能的影响。通过傅里叶红外光谱仪(FT-IR)、热分析仪(TGA)、紫外-可见分光光度计和粒径分析仪对产品进行表征。结果表明:可聚合乳化剂的使用能有效提高微乳液离心、高温和电解质稳定性; 当乳化剂和改性剂用量分别为混合单体总质量的20%和6%、m(CTAB)/m(APEG)=5、m(D4)/m(DVi4)=2和聚合反应时间为6 h时,制备得到浅蓝色透明有机硅微乳液单体,转化率为84.61%、乳胶粒平均粒径为44.8 nm、透光率为62.78%。热分析表明,共聚物分解温度随着单体DVi4用量的增加明显升高,乳胶膜的耐热性得到改善。
Abstract:
Microemulsion of amino modified polysiloxane was prepared by the polymerization of octamethylcyclotetrasiloxane(D4)and tetramethyltetravinylcylcotetrasiloxane(DVi4)with hexadecyl trimethyl ammonium bromide(CTAB), allyl-poly(ethylene glycol)(APEG)as compound emulsifier and γ-aminopropyltriethoxysilane as a modifier.The effects of the mass ratio of D4 and DVi4,the amount and the type of emulsifier on the properties of the microemulsion were investigated.The resultant polysiloxane was characterized by Fourier transform infrared spectroscopy(FT-IR),thermogravimetric analysis(TGA),particle size analyzer, and ultraviolet-visible spectrophotometer.Results showed that the mechanical stability,heat stability and electrolyte stability of microemulsion were improved with the polymerizable emulsifier.When the amounts of the modifier and the emulsifier were 6% and 20% of the reaction mixture,the mass ratio of D4 and DVi4 was 2,the mass ratio of CTAB and APEG was 5,and the reaction time was 6 h,the transmittance of the product and the monomer conversion rate were 62.78% and 84.61%,respectively.The mean diameter of the emulsion particles was 44.8 nm with a narrow distribution.TGA spectra indicated that the decomposition temperature of the copolymer increased with the increase of Dvi4 content,and the latex film also exhibited excellent thermal stability.

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备注/Memo

备注/Memo:
收稿日期:2015-03-17
作者简介:顾铭茜(1989—),女,江苏南通人,硕士,主要研究方向为表面活性剂合成及应用; 陈洪龄(联系人),教授,hlchen@njtech.edu.cn.
引用本文:顾铭茜,陈洪龄.可聚合乳化剂用于氨基改性有机硅微乳液制备[J].南京工业大学学报(自然科学版),2016,38(2):107-113..
更新日期/Last Update: 2016-03-20