ICCAS OpenIR
A novel effective way of comprising a beta-nucleating agent in isotactic polypropylene (i-PP): Polymerized dispersion and polymer characterization
Yi, Qing-Feng1,2,3; Wen, Xiao-Fing1,2,3; Dong, Jin-Yong1,2; Han, Charles C.1,2
2008-10-30
Source PublicationPOLYMER
ISSN0032-3861
Volume49Issue:23Pages:5053-5063
AbstractA kind of beta-nucleating agent, namely a stearic acid and stearate lanthanum complex (NA beta), was introduced into isotactic polypropylene (i-PP) via an in situ polymerization method for the first time. A dynamic adhesion model was constructed for interpreting the beta-nucleating agent dispersion process. The effects of a polymerized dispersion of the beta-nucleating agent on the content of beta-crystal and crystallization behavior of i-PP were investigated. The results show that the crystallization peak temperature of thus beta-nucleated i-PP was greatly increased while the spherulite size dramatically decreased compared with those of net i-PR The content of beta-phase (k(beta) value) can reach as high as 88.7% with only 0.135 wt% of NA beta addition, which holds constant with a further increase of NA beta concentration up to 3.41 wt%. The non-isothermal crystallization kinetics of thus beta-nucleated i-PP was studied with Mo equation and crystallization activation energy estimated by Kissinger method, giving unique results pertaining to the unprecedented NAP polymerized dispersion. (C) 2008 Elsevier Ltd. All rights reserved.
KeywordBeta-nucleating Agent Polypropylene Polymerized Dispersion
DOI10.1016/j.polymer.2008.09.037
Indexed BySCI
Language英语
WOS IDWOS:000260599400019
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:76[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/65068
Collection中国科学院化学研究所
Corresponding AuthorDong, Jin-Yong
Affiliation1.Chinese Acad Sci, CAS Key Lab Engn Plast, Beijing 100080, Peoples R China
2.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, Inst Chem, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Yi, Qing-Feng,Wen, Xiao-Fing,Dong, Jin-Yong,et al. A novel effective way of comprising a beta-nucleating agent in isotactic polypropylene (i-PP): Polymerized dispersion and polymer characterization[J]. POLYMER,2008,49(23):5053-5063.
APA Yi, Qing-Feng,Wen, Xiao-Fing,Dong, Jin-Yong,&Han, Charles C..(2008).A novel effective way of comprising a beta-nucleating agent in isotactic polypropylene (i-PP): Polymerized dispersion and polymer characterization.POLYMER,49(23),5053-5063.
MLA Yi, Qing-Feng,et al."A novel effective way of comprising a beta-nucleating agent in isotactic polypropylene (i-PP): Polymerized dispersion and polymer characterization".POLYMER 49.23(2008):5053-5063.
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