Isochiral form II of syndiotactic polypropylene produced by epitaxial crystallization
文献类型:期刊论文
作者 | Zhang, J; Yang, D; Thierry, A; Wittmann, JC; Lotz, B |
刊名 | MACROMOLECULES
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出版日期 | 2001-08-28 |
卷号 | 34期号:18页码:6261-6267 |
ISSN号 | 0024-9297 |
英文摘要 | Epitaxial crystallization of syndiotactic polypropylene (sPP) on 2-quinoxalinol (2-Quin) yields, in the lower part of the crystallization range, the less common and metastable form II based on the packing of isochiral helices, rather than the stable antichiral form I. The contact plane is (110)(II). Form II exits only as a thin layer (< 50 nm) near the substrate surface. During further growth away from the surface, a transition takes place to the disordered form I, observed in "conventional" thin film growth. The epitaxial relationship rests only partly on dimensional matching with the chain axis repeat distance (which would be valid for both forms I and II) and on interchain distances. Whereas a better dimensional match would be achieved with form I, selection of the isochiral form II results from better correspondence of the surface topographies of the deposit (110)(II) sPP and substrate 2-Quin (001) contact faces. |
语种 | 英语 |
WOS记录号 | WOS:000170662100021 |
出版者 | AMER CHEMICAL SOC |
源URL | [http://ir.iccas.ac.cn/handle/121111/77225] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Lotz, B |
作者单位 | 1.Inst Charles Sadron, CNRS, ULP, F-67083 Strasbourg, France 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, J,Yang, D,Thierry, A,et al. Isochiral form II of syndiotactic polypropylene produced by epitaxial crystallization[J]. MACROMOLECULES,2001,34(18):6261-6267. |
APA | Zhang, J,Yang, D,Thierry, A,Wittmann, JC,&Lotz, B.(2001).Isochiral form II of syndiotactic polypropylene produced by epitaxial crystallization.MACROMOLECULES,34(18),6261-6267. |
MLA | Zhang, J,et al."Isochiral form II of syndiotactic polypropylene produced by epitaxial crystallization".MACROMOLECULES 34.18(2001):6261-6267. |
入库方式: OAI收割
来源:化学研究所
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