ICCAS OpenIR
Morphology, tensile strength and thermal behavior of isotactic polypropylene/syndiotactic polystyrene blends compatibilized by SEBS copolymers
Chen, B; Tang, T; Li, XL; Xu, SQ; Zhang, XQ; Huang, BT
2004
Source PublicationPOLYMER JOURNAL
ISSN0032-3896
Volume36Issue:4Pages:284-293
AbstractThe effects of three triblock copolymers of poly [styrene-b-(ethylene-co-butylene)-b-styrene] (SEBS) of different molecular weight (MW) on the morphology, tensile strength and thermal behavior of isotactic polypropylene/syndiotactic polystyrene (iPP/sPS, 80/20) blend are investigated. Morphology observation shows that both the medium MW and the lower MW SEBS are more effective than the higher MW SEBS in compatibilizing the blends. Tensile tests revels both the medium and low MW compatibilizer lead to a significant improvement in tensile strength, while the higher MW compatibilizer is efficient in increasing the elongation at break of the blends. The localization of compatibilizers in the blends is observed by mean of SEM and the correlation between the distribution of the compatibilizers and mechanical properties of the blends is evaluated. The mechanical properties of the iPP/sPS blends depend on not only the interfacial activity of the compatibilizers but also the distribution of the compatibilizer in the blend. Addition of the compatibilizers to the blend causes a remarkable decrease in the magnitude of the crystallization peak of sPS at its usual T-c. Vicat softening points demonstrate that the heat resistance of iPP/sPS blend is much higher than that of the pure iPP.
KeywordSyndiotactic Polystyrene Isotactic Polypropylene Polymer Blend Compatibilization Morphology
Indexed BySCI
Language英语
WOS IDWOS:000221866500002
PublisherSOC POLYMER SCIENCE JAPAN
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81910
Collection中国科学院化学研究所
Corresponding AuthorChen, B
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China
2.NE Normal Univ, Coll Biol, Ctr Electron Microscopy, Changchun 130021, Jilin, Peoples R China
Recommended Citation
GB/T 7714
Chen, B,Tang, T,Li, XL,et al. Morphology, tensile strength and thermal behavior of isotactic polypropylene/syndiotactic polystyrene blends compatibilized by SEBS copolymers[J]. POLYMER JOURNAL,2004,36(4):284-293.
APA Chen, B,Tang, T,Li, XL,Xu, SQ,Zhang, XQ,&Huang, BT.(2004).Morphology, tensile strength and thermal behavior of isotactic polypropylene/syndiotactic polystyrene blends compatibilized by SEBS copolymers.POLYMER JOURNAL,36(4),284-293.
MLA Chen, B,et al."Morphology, tensile strength and thermal behavior of isotactic polypropylene/syndiotactic polystyrene blends compatibilized by SEBS copolymers".POLYMER JOURNAL 36.4(2004):284-293.
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