ICCAS OpenIR
Enhancement of Graft Yield and Control of Degradation During Polypropylene Maleation in the Presence of Polyfunctional Monomer
Ni, Qing-Lin1,2,3; Fan, Jia-Qi1; Niu, Hui1; Dong, Jin-Yong1
2011-09-05
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume121Issue:5Pages:2512-2517
AbstractFree-radical initiated grafting of maleic anhydride (MAH)/polyfunctional acrylate (PFA) multimonomer system onto polypropylene (PP) via reactive extrusion was studied. The effects of PFA and initiator concentration on the grafting reaction were investigated. It was shown that PFA as a comonomer could greatly enhance MAH grafting degree, which increased monotonically as the molar ratio of PFA to MAH increased. The rheology test demonstrated that the viscosity of grafted PP was also promoted as more PFA was used. The formation of branched structure during the grafting process was proved by oscillatory shear rheological analysis. The mechanism of grafting in the presence of PFA was discussed, suggesting PFA had higher reactivity with PP macroradicals than MAH and therefore forming stabilized macroradicals, thus resulting in depression of beta-scission and favoring the formation of branched structure. Higher initiator concentration gave higher MAH grafting degree but more severe degradation. The mechanical properties of the grafted PP were comparable with those of unmodified PP. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 2512-2517, 2011
KeywordMaleic Anhydride Polypropylene Reactive Extrusion Polyfuctional Acrylate
DOI10.1002/app.33941
Indexed BySCI
Language英语
WOS IDWOS:000291598100003
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71434
Collection中国科学院化学研究所
Corresponding AuthorDong, Jin-Yong
Affiliation1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.E China Mineral Explorat & Dev Bur, Nanjing 210007, Peoples R China
Recommended Citation
GB/T 7714
Ni, Qing-Lin,Fan, Jia-Qi,Niu, Hui,et al. Enhancement of Graft Yield and Control of Degradation During Polypropylene Maleation in the Presence of Polyfunctional Monomer[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2011,121(5):2512-2517.
APA Ni, Qing-Lin,Fan, Jia-Qi,Niu, Hui,&Dong, Jin-Yong.(2011).Enhancement of Graft Yield and Control of Degradation During Polypropylene Maleation in the Presence of Polyfunctional Monomer.JOURNAL OF APPLIED POLYMER SCIENCE,121(5),2512-2517.
MLA Ni, Qing-Lin,et al."Enhancement of Graft Yield and Control of Degradation During Polypropylene Maleation in the Presence of Polyfunctional Monomer".JOURNAL OF APPLIED POLYMER SCIENCE 121.5(2011):2512-2517.
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