Isothermal Crystallization Behavior of Exfoliated-PP/IMMT Nanocomposites via In Situ Polymerization
文献类型：期刊论文
| 作者 | Liu, Xin2; He, Aihua1; Du, Kai2; Han, Charles C.2 |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
 |
| 出版日期 | 2009-11-15 |
| 卷号 | 47期号:22页码:2215-2225 |
| 关键词 | Clay Crystallization Nanocomposites Poly(Propylene) (Pp) |
| ISSN号 | 0887-6266 |
| DOI | 10.1002/polb.21819 |
| 英文摘要 | Highly exfoliated isotactic-polypropylene/alkyl-imidazolium modified montmorillonite (PP/IMMT) nanocomposites have been prepared via in situ intercalative polymerization. TEM and XRD results indicated that the obtained composites were highly exfoliated PP/IMMT nanocomposites and the average thickness of IMMT in PP matrix was less than 10 nm, and the distance between adjacent IMMT particles was in the range of 20-200 nm. The isothermal crystallization kinetics of highly exfoliated PP/IMMT nanocomposites were investigated by using differential scanning calorimeter(DSC) and polarized optical microscope (POM). The crystallization half-time t(1/2), crystallization peak time t(max), and the Avrami crystallization rate constant K(n) showed that the nanosilicate layers accelerate the overall crystallization rate greatly due to the nucleation effect, and the crystallization rate was increased with the increase in MMT content. Meanwhile, the crystallinity of PP in nanocomposites decreased with the increase in clay content which indicated the PP chains were confined by the nanosilicate layers during the crystallization process. Although the well-dispersed silicate layers did not have much influence on spherulites growth rate, the nucleation rate and the nuclei density increased significantly. Accordingly, the spherulite size decreased with the increase in MMT content. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 2215-2225, 2009 |
| 语种 | 英语 |
| WOS记录号 | WOS:000271670600006 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67487]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | He, Aihua |
| 作者单位 | 1.Qingdao Univ Sci & Technol, Coll Polymer Sci & Engn, Minist Educ, Key Lab Rubber Plast, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Joint Lab Polymer Sci & Mat,State Key Lab Polymer, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xin,He, Aihua,Du, Kai,et al. Isothermal Crystallization Behavior of Exfoliated-PP/IMMT Nanocomposites via In Situ Polymerization[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2009,47(22):2215-2225. |
| APA | Liu, Xin,He, Aihua,Du, Kai,&Han, Charles C..(2009).Isothermal Crystallization Behavior of Exfoliated-PP/IMMT Nanocomposites via In Situ Polymerization.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,47(22),2215-2225. |
| MLA | Liu, Xin,et al."Isothermal Crystallization Behavior of Exfoliated-PP/IMMT Nanocomposites via In Situ Polymerization".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 47.22(2009):2215-2225. |
入库方式： OAI收割
来源：化学研究所
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