Cold Crystallization Behavior of Polyamide 6 in PS-g-PA6 Graft Copolymers
文献类型：期刊论文
| 作者 | Shi, Dean1,2; Wang, Xiao-Yang2; Shi, Hengchong3; Yin, Jing-Hua3; Li, Robert K. Y.1; Hu, Guo-Hua4,5 |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
 |
| 出版日期 | 2010 |
| 卷号 | 48期号:1页码:65-73 |
| 关键词 | Cold Crystallization Graft Copolymer Polyamide 6 Polystyrene |
| ISSN号 | 0887-6266 |
| DOI | 10.1002/polb.21844 |
| 英文摘要 | TEM micrographs show that the PA grafts of PS-g-PA6 graft copolymers, which are obtained directly by extracting homo-PA6 out from the homo-PA6/PS-g-PA6 blends, are in the form of wormlike structure. The wormlike PA6 domains can shrink into droplets after annealing at 250 degrees C for 15 min. The diameter of the droplet determined by TEM and SAXS is in the range of 50-60 nm. This article reports on a unique crystallization behavior of the PA6 grafts in PS-g-PA6 graft copolymers. In a DSC cooling scan, PA6 grafts do not crystallize from the melt with a cooling rate of 10 degrees C/min. However, there is a cold crystallization peak around 65 degrees C in the subsequent heating scan. This cold crystallization phenomenon, which has not yet been reported in the literature till now, follows well the homogeneous nucleation mechanism and is depressed at relatively slow cooling rates (2 degrees C/min) or even completely eliminated after annealing within a specific temperature range. It may be caused by the slow diffusion or transport rate of the less flexible PA6 grafts to the crystal fronts when crystallization takes place around its glass transition temperature. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part 8: Polym Phys 48: 65-73, 2010 |
| 语种 | 英语 |
| WOS记录号 | WOS:000273251700007 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/70517]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Robert K. Y. |
| 作者单位 | 1.City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China 2.Hubei Univ, Key Lab Green Preparat & Applicat Funct Mat, Minist Educ, Fac Mat Sci & Engn, Wuhan 430062, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, Grad Univ, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 4.Nancy Univ, Lab Chem Engn Sci, CNRS, F-54001 Nancy, France 5.Maison Univ, Inst Univ France, F-75005 Paris, France |
| 推荐引用方式 GB/T 7714 | Shi, Dean,Wang, Xiao-Yang,Shi, Hengchong,et al. Cold Crystallization Behavior of Polyamide 6 in PS-g-PA6 Graft Copolymers[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2010,48(1):65-73. |
| APA | Shi, Dean,Wang, Xiao-Yang,Shi, Hengchong,Yin, Jing-Hua,Li, Robert K. Y.,&Hu, Guo-Hua.(2010).Cold Crystallization Behavior of Polyamide 6 in PS-g-PA6 Graft Copolymers.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,48(1),65-73. |
| MLA | Shi, Dean,et al."Cold Crystallization Behavior of Polyamide 6 in PS-g-PA6 Graft Copolymers".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 48.1(2010):65-73. |
入库方式： OAI收割
来源：化学研究所
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