ICCAS OpenIR
Isochiral form II of syndiotactic polypropylene produced by epitaxial crystallization
Zhang, J; Yang, D; Thierry, A; Wittmann, JC; Lotz, B
2001-08-28
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume34Issue:18Pages:6261-6267
AbstractEpitaxial 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.
Indexed BySCI
Language英语
WOS IDWOS:000170662100021
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:44[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/77226
Collection中国科学院化学研究所
Corresponding AuthorLotz, B
Affiliation1.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
Recommended Citation
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.
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