ICCAS OpenIR
Crystallization behavior of dry-brush PEO-PS block copolymer and PEO homopolymer blend
Gao, Ying; Liu, Honglai
2007-11-15
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume106Issue:4Pages:2718-2723
AbstractThe crystallization behavior of semicrystalline PEO homopolymer/triblock PS-PEO-PS copolymer blend system, which exhibited "Dry-Brush" in the melt. A symmetric polystyrene-poly(ethylene oxide)-polystyrene triblock copolymer was blended with PEO hornopolymer (h-PEO) having the same molecular weight as that of the PEO block in the copolymer. Considering the composition of the blend (W-ps >= 0.8), PEO spheres were formed in the blend. Because of the dry-brush phase behavior of this blend, h-PEO added was localized in the PEO microdomains, which increases the domain size without changing the microdomain morphology. The crystallization of PEO block was confined within the microdomains and the crystallization temperature was about 60 degrees C lower than normal. Self-seeding tests were performed to clarify the nucleation mechanism of the blend. Because the droplets size varies greatly, multicrystallization peaks were witnessed in the self-seeding process. (c) 2007 Wiley Periodicals, Inc.
KeywordBlending Differential Scanning Calorimetry (Dsc) Crystallization Nucleation
DOI10.1002/app.26812
Indexed BySCI
Language英语
WOS IDWOS:000249590700072
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/62806
Collection中国科学院化学研究所
Corresponding AuthorGao, Ying
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.E China Univ Sci & Technol, Coll Chem Engn & Pharm, Shanghai 200237, Peoples R China
Recommended Citation
GB/T 7714
Gao, Ying,Liu, Honglai. Crystallization behavior of dry-brush PEO-PS block copolymer and PEO homopolymer blend[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2007,106(4):2718-2723.
APA Gao, Ying,&Liu, Honglai.(2007).Crystallization behavior of dry-brush PEO-PS block copolymer and PEO homopolymer blend.JOURNAL OF APPLIED POLYMER SCIENCE,106(4),2718-2723.
MLA Gao, Ying,et al."Crystallization behavior of dry-brush PEO-PS block copolymer and PEO homopolymer blend".JOURNAL OF APPLIED POLYMER SCIENCE 106.4(2007):2718-2723.
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