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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 | |
2000-11-01 | |
Source Publication | CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
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ISSN | 1005-9040 |
Volume | 16Issue:4Pages:363-368 |
Abstract | 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). |
Keyword | Differential Scanning Calorimeter(Dsc) Critical Overlapping Concentration Atactic Polystyrene Film |
Indexed By | SCI |
Language | 英语 |
WOS ID | WOS:000165885600013 |
Publisher | HIGHER EDUCATION PRESS |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.iccas.ac.cn/handle/121111/75928 |
Collection | 中国科学院化学研究所 |
Affiliation | 1.Chinese Acad Sci, Inst Chem, Polymer Phys Lab, Beijing 100080, Peoples R China 2.China Text Acad, Beijing 100025, Peoples R China |
Recommended Citation 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. |
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