Effects of Branches on the Crystallization Kinetics of Polypropylene-g-Polystyrene and Polypropylene-g-Poly(n-butyl acrylate) Graft Copolymers with Well-defined Molecular Structures
文献类型：期刊论文
| 作者 | Wang, Lu1,2; Jiang, Zhi-wei1,2; Liu, Feng1,2; Zhang, Zhi-jie1,2; Tang, Tao1 |
| 刊名 | CHINESE JOURNAL OF POLYMER SCIENCE
 |
| 出版日期 | 2014-03-01 |
| 卷号 | 32期号:3页码:333-349 |
| 关键词 | Polypropylene Polypropylene-g-polystyrene Graft Copolymer Polypropylene-g-poly(N-butyl Acrylate) Graft Copolymer Isothermal Crystallization Nonisothermal Crystallization |
| ISSN号 | 0256-7679 |
| DOI | 10.1007/s10118-014-1404-2 |
| 英文摘要 | Effects of branches on the crystallization kinetics of polypropylene-g-polystyrene (PP-g-PS) and polypropylene-gpoly( n-butyl acrylate) (PP-g-PnBA) graft copolymers with well-defined molecular structures were systematically investigated by DSC. The Avrami equation was used to analyze the isothermal crystallization process, while the analysis of nonisothermal crystallization process was based on the Jeziorny-modified Avrami model and Mo model. The kinetics results of isothermal and nonisothermal crystallization verified the peculiar effects of branches on the crystallization process of PP backbones in PP-g-PS and PP-g-PnBA graft copolymers: on one hand, the interaction between branches (pi-pi interaction between PS branches, or dipole-dipole interaction between PnBA branches) restrained the mobility and reptation ability of the PP backbones, which hindered the crystallization process; on the other hand, the heterogeneous nucleation effect resulting from the branched structure and fluctuation-assisted nucleation mechanism (caused by microphase separation between the PS or PnBA rich phase and the PP rich phase) became more pronounced with increasing branch length, which facilitated the crystallization process. |
| 语种 | 英语 |
| WOS记录号 | WOS:000331972400008 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52215]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Tang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Lu,Jiang, Zhi-wei,Liu, Feng,et al. Effects of Branches on the Crystallization Kinetics of Polypropylene-g-Polystyrene and Polypropylene-g-Poly(n-butyl acrylate) Graft Copolymers with Well-defined Molecular Structures[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2014,32(3):333-349. |
| APA | Wang, Lu,Jiang, Zhi-wei,Liu, Feng,Zhang, Zhi-jie,&Tang, Tao.(2014).Effects of Branches on the Crystallization Kinetics of Polypropylene-g-Polystyrene and Polypropylene-g-Poly(n-butyl acrylate) Graft Copolymers with Well-defined Molecular Structures.CHINESE JOURNAL OF POLYMER SCIENCE,32(3),333-349. |
| MLA | Wang, Lu,et al."Effects of Branches on the Crystallization Kinetics of Polypropylene-g-Polystyrene and Polypropylene-g-Poly(n-butyl acrylate) Graft Copolymers with Well-defined Molecular Structures".CHINESE JOURNAL OF POLYMER SCIENCE 32.3(2014):333-349. |
入库方式： OAI收割
来源：化学研究所
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