Effects of Temperature and Template Surface on Crystallization of Syndiotactic Polystyrene in Cylindrical Nanopores

doi:10.1021/ma300688h

CORC > 化学研究所 > 中国科学院化学研究所

	Effects of Temperature and Template Surface on Crystallization of Syndiotactic Polystyrene in Cylindrical Nanopores
	Li, Meng; Wu, Hui; Huang, Yan; Su, Zhaohui
刊名	MACROMOLECULES
	2012-06-26
卷号	45 期号:12 页码:5196-5200
ISSN号	0024-9297
DOI	10.1021/ma300688h
英文摘要	Crystallization of syndiotactic polystyrene (sPS) in anodized aluminum oxide (AAO) templates is investigated by FTIR. Nanopore surfaces of AAO templates are modified with n-hexyltrimethoxysilane to produce templates with alkyl surfaces, and effects of crystallization temperature and surface property of the template on the degree of crystallinity of sPS in nanopores of various sizes are studied. When isothermally crystallized at 245-260 degrees C, while the crystallinity in the bulk barely varies, in pristine and modified nanopores it increases substantially with degree of supercooling, which may be attributed to more surface-induced crystallization at lower temperatures. For all crystallization temperatures and pore sizes studied, sPS exhibits much lower crystallinity in the surface-modified templates, likely due to suppression of surface nucleation by the lower energy surfaces. This work reveals the significant role surface plays in polymer crystallization in nanotemplates and may aid the design and fabrication of polymeric nanodevices with well-defined structure and properties.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000305661600028
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47227]
专题	中国科学院化学研究所
通讯作者	Su, Zhaohui
作者单位	Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Li, Meng,Wu, Hui,Huang, Yan,et al. Effects of Temperature and Template Surface on Crystallization of Syndiotactic Polystyrene in Cylindrical Nanopores[J]. MACROMOLECULES,2012,45(12):5196-5200.
APA	Li, Meng,Wu, Hui,Huang, Yan,&Su, Zhaohui.(2012).Effects of Temperature and Template Surface on Crystallization of Syndiotactic Polystyrene in Cylindrical Nanopores.MACROMOLECULES,45(12),5196-5200.
MLA	Li, Meng,et al."Effects of Temperature and Template Surface on Crystallization of Syndiotactic Polystyrene in Cylindrical Nanopores".MACROMOLECULES 45.12(2012):5196-5200.