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Influence of ionic liquid on glass transition, dynamic rheology, and thermal stability of poly(methyl methacrylate)/silica nanocomposites
Author(s) -
Xu Yiting,
Xu Huilong,
Zheng Qiang,
Song Yihu
Publication year - 2019
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.48007
Subject(s) - ionic liquid , thermal stability , glass transition , materials science , nanocomposite , rheology , methyl methacrylate , dispersion (optics) , methacrylate , ionic bonding , chemical engineering , polymer chemistry , polymer , composite material , chemistry , organic chemistry , copolymer , catalysis , ion , physics , engineering , optics
The nanofiller dispersion greatly influences the properties of nanocomposites. Herein an ionic liquid, 1‐ethyl‐3‐methylimidazolium tetrafluoroborate, is introduced in poly(methyl methacrylate) (PMMA) nanocomposites for mediating dispersion of silica filler. As elucidated by rheology, the ionic liquid is able to improve the degree of retardation of chains diffusion induced by silica although it eliminates the elevation of glass transition. Simultaneously, the ionic liquid incorporated can improve thermal and thermal‐oxidative stability of PMMA due to trapping of radicals and blocking oxygen penetration. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 48007.