ICCAS OpenIR
Non-isothermal crystallization behavior and kinetics of metallocene short chain branched polyethylene
Peng, Y; Fu, Q; Liu, JP; He, TB
2002-06-01
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume23Issue:6Pages:1183-1188
AbstractThe non-isothermal crystallization behavior and kinetics of metallocene short chain branched polyethylene were investigated via DSC at cooling rates from 2.5 to 20 degreesC/min, and subsequent heating at rate of 10 degreesC/min. To verify the effect of molecular weight and branching content on crystallization, three group samples were chosen: (1) linear polyethylene with low molecular weight and high molecular weight; (2) low molecular weight polyethylene with low branching content and high branching content; (3) high molecular weight polyethylene with low branching content and high branching content. The results show that crystallization temperature, crystallinity, melting temperature and crystallization rate are highly branching content-dependent. Molecular weight effect is less important, compared to branching content. A dramatic decrease of crystallization temperature, crystallinity, crystallization rate and melting temperature was observed for branched samples. The non-isothermal kinetics was analyzed via the methods, developed by Gupta and Mo Zhi-shen, and good agreement was obtained.
KeywordMetallocene Short Branched Polyethylene Non-isothermal Crystallization Molecular Weight Branching Content
Indexed BySCI
Language英语
WOS IDWOS:000176272300053
PublisherHIGHER EDUCATION PRESS
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78242
Collection中国科学院化学研究所
Corresponding AuthorFu, Q
Affiliation1.Sichuan Univ, State Key Lab Polymer Mat Engn, Dept Polymer Sci & Mat, Chengdu 610065, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Peng, Y,Fu, Q,Liu, JP,et al. Non-isothermal crystallization behavior and kinetics of metallocene short chain branched polyethylene[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2002,23(6):1183-1188.
APA Peng, Y,Fu, Q,Liu, JP,&He, TB.(2002).Non-isothermal crystallization behavior and kinetics of metallocene short chain branched polyethylene.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,23(6),1183-1188.
MLA Peng, Y,et al."Non-isothermal crystallization behavior and kinetics of metallocene short chain branched polyethylene".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 23.6(2002):1183-1188.
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