ICCAS OpenIR
A morphological study of poly(butylene succinate)/poly(butylene adipate) blends with different blend ratios and crystallization processes
Wang, Haijun1; Gana, Zhihua1; Schultz, Jerold M.2; Yan, Shouke1
2008-04-29
Source PublicationPOLYMER
ISSN0032-3861
Volume49Issue:9Pages:2342-2353
AbstractMorphologies of PBS/PBA blends varying in blend ratio at different crystallization temperatures of PBS component were studied using optical and atomic force microscopies. It was found that interspherulitic phase segregation of PBA takes place at high temperature, e.g. 100 degrees C, for all blend compositions due to the high diffusion length. On the contrary, no interspherulitic phase segregation of PBA at 75 degrees C occurs at all, consistent with a shorter diffusion length. It was further found that the PBA melt acted as a diluter, affecting the morphology of PBS, which in turn influenced the phase separation behavior of PBA remarkably. At 100 degrees C, with increasing PBA concentration, the resultant open structure of PBS caused by the diluting effect of the PBA melt makes it necessary to retain some portion of the PBA melt between the PBS lamellae. This leads to the concurrence of interlamellar and interspherulitic phase segregations. An even higher PBA content results in the occurrences of all three phase separation options, i.e. interlamellar, interfibrillar and interspherulitic phase segregations. At 75 degrees C, in blends with PBA as a minority phase, mainly interlamellar segregation of PBA occurs. For a 50/50 blend, interlamellar and interfibrillar phase segregations take place simultaneously. For a PBA in-rich blend, PBS forms only a spherulitic framework, filled in with the PBA lamellar crystals, indicating that interfibrillar mode is the main phase separation process. (C) 2008 Elsevier Ltd. All rights reserved.
KeywordPoly(Butylene Succinate) Poly(Butylene Adipate) Blends
DOI10.1016/j.polymer.2008.02.050
Indexed BySCI
Language英语
WOS IDWOS:000255923200020
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:51[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64286
Collection中国科学院化学研究所
Corresponding AuthorGana, Zhihua
Affiliation1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China
2.Univ Delaware, Dept Chem Engn, Newark, DE 19716 USA
Recommended Citation
GB/T 7714
Wang, Haijun,Gana, Zhihua,Schultz, Jerold M.,et al. A morphological study of poly(butylene succinate)/poly(butylene adipate) blends with different blend ratios and crystallization processes[J]. POLYMER,2008,49(9):2342-2353.
APA Wang, Haijun,Gana, Zhihua,Schultz, Jerold M.,&Yan, Shouke.(2008).A morphological study of poly(butylene succinate)/poly(butylene adipate) blends with different blend ratios and crystallization processes.POLYMER,49(9),2342-2353.
MLA Wang, Haijun,et al."A morphological study of poly(butylene succinate)/poly(butylene adipate) blends with different blend ratios and crystallization processes".POLYMER 49.9(2008):2342-2353.
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