Crystalline morphology and crystallization characteristics of in-situ blends of anionic polyamide 6 with noncrystallizable semi-aromatic polyamide copolymer
文献类型：期刊论文
| 作者 | Wang Xiao-chun; Zheng Qiang; Yang Gui-sheng |
| 刊名 | CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 23期号:3页码:360-365 |
| 关键词 | In-situ Blend Noncrystallizable Polyamide Copolymer Anionic Polymerization Morphology Crystallization |
| ISSN号 | 1005-9040 |
| 英文摘要 | A noncrystallizable semiaromatic polyamide copolymer(NSAP) was dissolved in molten caprolactam, and PA6/NSAP blends' were produced in-situ via the anionic ring-ppening polymerization of caprolarctam. The presence. of a single loss tangent(tan delta) peak measured by means of dynamic mechanical: analysis(DMA) proves the miscibility between PA6 and NSAP in the blends. It was found that there existed drastic changes in the crystallographic form and crystallization kinetics for the in-situ blends, e..g., when 20% NSAP was added, nearly all crystallites existed in the gamma form and the crystallization could hardly occur upon cooling even at a rate of 2.5 degrees C /min. Moreover, cold crystallization appears during the subsequent, heating and its melting point is 40 degrees C lower than that of the virgin system. On the other hand, the size of the spherulites only, decreases modestly. It is suggested that the introduction of irregular stiff segments originated from NSAP into PA6 macromolecule chain, which resulted from transamidation during the polymerization play a dominant role in the drastic change of crystallization kinetics and the resultant morphology of the in-situ blends. |
| 语种 | 英语 |
| WOS记录号 | WOS:000247279400025 |
| 出版者 | HIGHER EDUCATION PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/60565]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zheng Qiang |
| 作者单位 | 1.Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China 2.Minist Educ, Key Lab Macromol Synth & Funct, Hangzhou 310027, Peoples R China 3.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Xiao-chun,Zheng Qiang,Yang Gui-sheng. Crystalline morphology and crystallization characteristics of in-situ blends of anionic polyamide 6 with noncrystallizable semi-aromatic polyamide copolymer[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2007,23(3):360-365. |
| APA | Wang Xiao-chun,Zheng Qiang,&Yang Gui-sheng.(2007).Crystalline morphology and crystallization characteristics of in-situ blends of anionic polyamide 6 with noncrystallizable semi-aromatic polyamide copolymer.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,23(3),360-365. |
| MLA | Wang Xiao-chun,et al."Crystalline morphology and crystallization characteristics of in-situ blends of anionic polyamide 6 with noncrystallizable semi-aromatic polyamide copolymer".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 23.3(2007):360-365. |
入库方式： OAI收割
来源：化学研究所
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