Studies on the condensed structure of vacuum cast atactic polystyrene films

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	Studies on the condensed structure of vacuum cast atactic polystyrene films
	Wang, Y ; He, CN ; Shen, JS ; Wu, LH ; Song, Q
刊名	CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
	2000-11-01
卷号	16 期号:4 页码:363-368
关键词	Differential Scanning Calorimeter(Dsc) Critical Overlapping Concentration Atactic Polystyrene Film
ISSN号	1005-9040
英文摘要	The condensed structure of atactic-polystyrene (a-PS) films cast from the solutions of different concentrations in dichloromethane under vacuum and atmospheric conditions was studied by differential scanning calorimetry(DSC). It was found that only under vacuum evaporating conditions did the endothermic peak in the DSC curves of a-PS films depend on the concentration of the a-PS solution,For the samples cast from the solution of concentration below 0. 010 g/mL, no endothermal peak was observed, but for those cast from the solution of concentration above 0. 020 g/mL, obvious endothermal peaks appeared. The onset of the endothermal peak is correlated with the critical overlapping Concentration c* (0. 010-0. 020 g/mL), which is in agreement with the theoretically calculated one (c*(ca1)=0. 014 g/mL).
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000165885600013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/75927]
专题	中国科学院化学研究所
作者单位	1.Chinese Acad Sci, Inst Chem, Polymer Phys Lab, Beijing 100080, Peoples R China 2.China Text Acad, Beijing 100025, Peoples R China
推荐引用方式 GB/T 7714	Wang, Y,He, CN,Shen, JS,et al. Studies on the condensed structure of vacuum cast atactic polystyrene films[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2000,16(4):363-368.
APA	Wang, Y,He, CN,Shen, JS,Wu, LH,&Song, Q.(2000).Studies on the condensed structure of vacuum cast atactic polystyrene films.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,16(4),363-368.
MLA	Wang, Y,et al."Studies on the condensed structure of vacuum cast atactic polystyrene films".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 16.4(2000):363-368.