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化工新型材料  2018, Vol. 46 Issue (11): 142-145    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
长链烷基聚甲基倍半硅氧烷纳米杂化乳液的合成与微观形态
郝丽芬, 裴萌萌, 王学川, 许伟, 杨锐妮, 杨百勤
陕西科技大学化学与化工学院,轻化工助剂化学与技术教育部重点实验室,西安710021
Synthesis and micromorphology of long-chain alkyl polymethylsilsesquioxane nano-hybrid emulsion
Hao Lifen, Pei Mengmeng, Wang Xuechuan, Xu Wei, Yang Ruini, Yang Baiqin
Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry,Ministry of Education,College of Chemistry and Chemical Engineering,Shaanxi University of Science and Technology,Xi'an 710021
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摘要 以甲基三乙氧基硅烷(MTES)和十二烷基三甲氧基硅烷(DTMS)为前驱体,NaOH为催化剂,十二烷基磺酸钠/吐温80为复合乳化剂,通过乳液聚合法制得了一类长链烷基聚甲基倍半硅氧烷(PDMSQ)纳米杂化乳液。考察了乳化剂用量、催化剂浓度和油水比对PDMSQ微观形态的影响。采用红外光谱、X射线电子能谱、纳米粒度表面电位分析仪、扫描电镜和热重等手段对PDMSQ的结构、粒径、微观形态和耐热稳定性进行测定。结果表明:PDMSQ具有预期的结构,且具有优良的耐热稳定性;当w(SDS/T80)为0.71%(质量分数),NaOH浓度为50~100mmol/L和油水比为1∶4~6时,制得的系列PDMSQ纳米球平均粒径小于80nm且分散窄、呈规整球形。
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郝丽芬
裴萌萌
王学川
许伟
杨锐妮
杨百勤
关键词:  聚倍半硅氧烷  乳液聚合  纳米杂化    
Abstract: A sort of long-chain alkyl polymethylsilsesquioxane(PDMSQ) nano-hybrid emulsion was prepared via emulsion polymerization of methyltriethoxysilane (MTES) and dodecyltrimethoxysilane(DTMS) and used sodium hydroxyl as the catalyst,solium dodecyl sulfonate/Twain 80 as mixed emulsifiers.Effects of emulsifier dose,catalyst concentration and oil/water ratio were discussed.Structure,particle size,micromorphology and thermal stability of PDMSQ NPs were investigated by FT-IR,XPS,DLS,SEM and TG.Results indicated that the structure of PDMSQ NPs was consistent with the designed and thermal stability of PDMSQ NPs was excellent.When w(SDS/T80) was 0.71%,NaOH concentration was 50~100mmol/L and the oil/water ratio was 1∶4~6,the average particle sizes of narrowly distributed PDMSQ NPs were less than 80nm.Meanwhile PDMSQ NPs were regularly spheres.
Key words:  polysilsesquioxane    emulsion polymerization    nano-hybrid
收稿日期:  2017-06-20                出版日期:  2018-11-20      发布日期:  2018-12-04      期的出版日期:  2018-11-20
基金资助: 陕西省科技厅自然科学基础研究项目(2016JQ2031);陕西省教育厅专项(17JK0108);陕西省科技厅科技统筹项目(2015KTCL01-14)
作者简介:  郝丽芬(1978-),女,副教授,主要研究方向为功能性有机氟硅材料的合成与应用。
引用本文:    
郝丽芬, 裴萌萌, 王学川, 许伟, 杨锐妮, 杨百勤. 长链烷基聚甲基倍半硅氧烷纳米杂化乳液的合成与微观形态[J]. 化工新型材料, 2018, 46(11): 142-145.
Hao Lifen, Pei Mengmeng, Wang Xuechuan, Xu Wei, Yang Ruini, Yang Baiqin. Synthesis and micromorphology of long-chain alkyl polymethylsilsesquioxane nano-hybrid emulsion. New Chemical Materials, 2018, 46(11): 142-145.
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http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2018/V46/I11/142
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