ICCAS OpenIR
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 PublicationCHEMICAL RESEARCH IN CHINESE UNIVERSITIES
ISSN1005-9040
Volume16Issue:4Pages:363-368
AbstractThe 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).
KeywordDifferential Scanning Calorimeter(Dsc) Critical Overlapping Concentration Atactic Polystyrene Film
Indexed BySCI
Language英语
WOS IDWOS:000165885600013
PublisherHIGHER EDUCATION PRESS
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/75928
Collection中国科学院化学研究所
Affiliation1.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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