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Exfoliation of organically modified montmorillonite driven by molecular diffusion in maleated polypropylene
Author(s) -
Meng Xiaoyu,
Wang Zhe,
Du Xiaohua,
Wang Yanhui,
Tang Tao
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29964
Subject(s) - intercalation (chemistry) , montmorillonite , exfoliation joint , polypropylene , materials science , chemical engineering , grafting , maleic anhydride , polymer chemistry , diffusion , crystallinity , pulmonary surfactant , steric effects , polymer , copolymer , chemistry , composite material , organic chemistry , nanotechnology , graphene , thermodynamics , physics , engineering
This work is focused on the factors influencing the intercalation of maleated polypropylene (PPMA) into organically modified montmorillonite (OMMT). Two kinds of PPMA were used to explore the optimal candidate for effective intercalation into OMMT. The grafting degree of maleic anhydride and the viscosity of PPMA have effects on the diffusion of polymer molecules. Moreover, the loading level of surfactant was varied to optimize the modification of montmorillonite because the appropriate loading level can provide a balance between interlayer distance and steric hindrance. The kind of surfactant changes the interaction between OMMT and PPMA, and accordingly the intercalation of PPMA is different, resulting in the discrepancy of the intercalation of PPMA. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009