ICCAS OpenIR
Isothermal and nonisothermal melt-crystallization kinetics of syndiotactic polystyrene
Chen, QY; Yu, YN; Na, TH; Zhang, HF; Mo, ZS
2002-03-21
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume83Issue:12Pages:2528-2538
AbstractAnalyses of the isothermal and nonisothermal melt kinetics for syndiotactic polystyrene have been performed with differential scanning calorimetry, and several kinetic analyses have been used to describe the crystallization process. The regime II-->III transition, at a crystallization temperature of 239degrees, is found. The values of the nucleation parameter K-g for regimes II and III are estimated. The lateral-surface free energy, sigma = 3.24 erg cm(-2), the fold-surface free energy, sigma(e) = 52.3 +/- 4.2 erg cm(-2), and the average work of chain folding, q = 4.49 +/- 0.38 kcal/mol, are determined with the (040) plane assumed to be the growth plane. The observed crystallization characteristics of syndiotactic polystyrene are compared with those of isotactic polystyrene. The activation energies of isothermal and nonisothermal melt crystallization are determined to be DeltaE = -830.7 kJ/mol and DeltaE = -315.9 kJ/mol, respectively. (C) 2002 John Wiley Sons, Inc.
KeywordSyndiotactic Polystyrene Isothermal And nonIsothermal Melt Kinetics Differential Scanning Calorimetry (Dsc) Activation Energy Regime Crystallization
DOI10.1002/app.10192
Indexed BySCI
Language英语
WOS IDWOS:000173302300003
PublisherJOHN WILEY & SONS INC
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79248
Collection中国科学院化学研究所
Corresponding AuthorMo, ZS
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Chen, QY,Yu, YN,Na, TH,et al. Isothermal and nonisothermal melt-crystallization kinetics of syndiotactic polystyrene[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2002,83(12):2528-2538.
APA Chen, QY,Yu, YN,Na, TH,Zhang, HF,&Mo, ZS.(2002).Isothermal and nonisothermal melt-crystallization kinetics of syndiotactic polystyrene.JOURNAL OF APPLIED POLYMER SCIENCE,83(12),2528-2538.
MLA Chen, QY,et al."Isothermal and nonisothermal melt-crystallization kinetics of syndiotactic polystyrene".JOURNAL OF APPLIED POLYMER SCIENCE 83.12(2002):2528-2538.
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