嵌段共聚物增容共混聚合物的相形貌及胶束迁移行为研究*

doi:10.11896/j.issn.1005-023X.2017.04.022

《材料导报》期刊社

2017, Vol. 31

Issue (4): 100-104 https://doi.org/10.11896/j.issn.1005-023X.2017.04.022

材料研究

嵌段共聚物增容共混聚合物的相形貌及胶束迁移行为研究^*

黄林¹, 杨艳琼¹, 余峰¹, 付甲², 陈忠仁^1,2

1 宁波大学材料科学与化学工程学院, 宁波 315211;
2 南方科技大学化学系, 深圳 518055

Morphology and Micelle Migration Behavior of Melt Blend Compatibilized by Block Copolymer

HUANG Lin¹, YANG Yanqiong¹, YU Feng¹, FU Jia², CHEN Zhongren^1,2

1 Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211;
2 Department of Chemistry,South University of Science and Technology of China, Shenzhen 518055

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摘要主要研究了对称性的聚苯乙烯-聚甲基丙烯酸甲酯嵌段共聚物(PS-b-PMMA,简称SM)对聚甲基丙烯酸甲酯/聚甲基丙烯酸环己酯(PMMA/PCHMA)熔融共混体系的增容。采用透射电子显微镜(TEM)表征了SM和PMMA分子量对共混体系微观相形态和胶束迁移行为的影响。研究表明,SM分别在PMMA与PCHMA均聚物中形成不同结构的胶束,当SM在PMMA/PCHMA界面上形成“湿刷”时,SM在PCHMA相中形成的胶束才能迁移到PMMA相中。SM的加入改善了PMMA与PCHMA之间的相容性, 但其增容效果取决于SM的分子量。随着分散相PMMA分子量从19 kg/mol增加到39 kg/mol,PMMA粒子的平均粒径逐渐增加。

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	黄林
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	陈忠仁

关键词: 聚合物共混嵌段共聚物增容形貌胶束

Abstract: Symmetric poly(styrene-b-methyl methacrylate) (PS-b-PMMA, SM) block copolymers were utilized to compatibilize poly(methyl methacrylate) and poly(cyclohexyl methacrylate) (PMMA/PCHMA) melt blends. The effect of molecular weight of SM and PMMA on the morphology of mixed blend and migration of micelle in the mixed phase was characterized by transmission electron microscope (TEM). The results showed that micelles with different morphology were formed when SM was blended with PMMA and PCHMA, respectively. When wet brushes were formed by the block copolymer at the interface of the mixed phase, the micelles generated in PCHMA phase were migrated to PMMA phase. SM improved the compatibility of PCHMA and PMMA, but the degree of compatibility mainly depended on the molecular weight of SM. With the increase of PMMA molecular weight from 19 kg/mol to 39 kg/mol, the average particle size of PMMA increased as well.

Key words: polymer blend block copolymer compatibilization morphology micelle

出版日期: 2017-02-25 发布日期: 2018-05-02

ZTFLH:	TQ320.1
	TQ325.7

基金资助: *国家自然科学基金(21274070);浙江省重点科技创新团队(2011R50001);宁波市“3315计划”高端创业创新团队(A类)(2012S0001);浙江省科技创新团队子项目(019-E01176124200)

通讯作者: 陈忠仁:通讯作者,男,1964年生,博士,教授,主要研究方向为聚合物分子设计与可控聚合、高分子聚集态结构调控与表征、有机纳米材料多尺度加工、高分子复合材料界面设计与调控、高分子疲劳失效机理与寿命预测 E-mail:chenzhongren@nbu.edu.cn

作者简介: 黄林:男,1991年生,硕士研究生,主要研究方向为聚合物共混增容 E-mail:huanglin320@foxmail.com

引用本文:

黄林, 杨艳琼, 余峰, 付甲, 陈忠仁. 嵌段共聚物增容共混聚合物的相形貌及胶束迁移行为研究^*[J]. 《材料导报》期刊社, 2017, 31(4): 100-104.
HUANG Lin, YANG Yanqiong, YU Feng, FU Jia, CHEN Zhongren. Morphology and Micelle Migration Behavior of Melt Blend Compatibilized by Block Copolymer. Materials Reports, 2017, 31(4): 100-104.

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http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.04.022 或 http://www.mater-rep.com/CN/Y2017/V31/I4/100

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