ICCAS OpenIR
In situ FTIR studies on the cold-crystallization process and multiple melting behavior of isotactic polystyrene
Duan, YX; Zhang, JM; Shen, DY; Yan, SK
2003-07-01
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume36Issue:13Pages:4874-4879
AbstractThe structure evolution of iPS during isothermal cold-crystallization and subsequent melting processes is studied by in situ monitoring its FTIR spectra. Through following the intensity changes of the characteristic bands associated with its crystalline status and 31 helix conformation chains, the multiple melting behavior of iPS cold-crystallized at different temperatures has been discussed in detail. It is concluded that (i) the lowest-temperature annealing peak can be ascribed either to the relaxing of locally ordered long 3, helix chains in the amorphous phase or to the melting of some microcrystallites formed upon long-time annealing; (ii) the double melting behavior of iPS cold-crystallized at temperatures lower than 180 degreesC is mainly attributed to the model of melting, recrystallization, and remelting of the iPS crystals; and (iii) for the sample cold-crystallized at a temperature of 200 degreesC, the in situ IR experiments give strong evidence to support the existence of different kinds of crystals which show different thermodynamic stabilities.
DOI10.1021/ma034008f
Indexed BySCI
Language英语
WOS IDWOS:000183881400031
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80286
Collection中国科学院化学研究所
Corresponding AuthorYan, SK
AffiliationChinese Acad Sci, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Duan, YX,Zhang, JM,Shen, DY,et al. In situ FTIR studies on the cold-crystallization process and multiple melting behavior of isotactic polystyrene[J]. MACROMOLECULES,2003,36(13):4874-4879.
APA Duan, YX,Zhang, JM,Shen, DY,&Yan, SK.(2003).In situ FTIR studies on the cold-crystallization process and multiple melting behavior of isotactic polystyrene.MACROMOLECULES,36(13),4874-4879.
MLA Duan, YX,et al."In situ FTIR studies on the cold-crystallization process and multiple melting behavior of isotactic polystyrene".MACROMOLECULES 36.13(2003):4874-4879.
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