ICCAS OpenIR
Preparation and characterization of microcellular polystyrene/polystyrene ionomer blends with supercritical carbon dioxide
Wang, J; Cheng, XG; Zheng, XJ; Yuan, MJ; He, JS
2003-02-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
ISSN0887-6266
Volume41Issue:4Pages:368-377
AbstractThe preparation of microcellular polystyrene (PS), lightly sulfonated polystyrene (SPS), zinc-neutralized lightly sulfonated polystyrene (ZnSPS), and blends of PS/SPS and PS/ZnSPS via supercritical CO2 was carried out with the pressure-quench process. Both higher foaming temperature and lower pressure result in larger cell sizes, lower cell densities, and lower relative density for microcellular ionomers and blends as for microcellular PS. The difference among various microcellular samples is the change of cell size with the sample composition. The cell size decreases in the sequence from SPS, through PS/SPS blends, PS and PS/ZnSPS blends, to ZnSPS. The diffusivity of CO2 in samples also decreases in the sequence from SPS, through PS/SPS blends, PS and PS/ZnSPS blends, to ZnSPS. For this series of samples with similar structure and identical solubility of CO2, the varying diffusivity is responsible for the difference of cell sizes. (C) 2003 Wiley Periodicals, Inc.
KeywordMicrocellular Polymer Polystyrene Ionomers Supercritical Co2 Microstructure
DOI10.1002/polb.10371
Indexed BySCI
Language英语
WOS IDWOS:000180576300006
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81216
Collection中国科学院化学研究所
Corresponding AuthorHe, JS
AffiliationChinese Acad Sci, State Key Lab Engn Plast, Ctr Mol Sci, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Wang, J,Cheng, XG,Zheng, XJ,et al. Preparation and characterization of microcellular polystyrene/polystyrene ionomer blends with supercritical carbon dioxide[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2003,41(4):368-377.
APA Wang, J,Cheng, XG,Zheng, XJ,Yuan, MJ,&He, JS.(2003).Preparation and characterization of microcellular polystyrene/polystyrene ionomer blends with supercritical carbon dioxide.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,41(4),368-377.
MLA Wang, J,et al."Preparation and characterization of microcellular polystyrene/polystyrene ionomer blends with supercritical carbon dioxide".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 41.4(2003):368-377.
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