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A simple approach to prepare PMA/TiO 2 composite: The homogeneous dispersion of nano TiO 2 in maleic anhydride polymer matrix
Author(s) -
Hua Xiao,
Bei FengLi,
Wang Xin
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.29703
Subject(s) - materials science , maleic anhydride , polymer , nanoparticle , composite number , polymerization , nano , dispersion (optics) , chemical engineering , grafting , polymer chemistry , matrix (chemical analysis) , composite material , copolymer , nanotechnology , physics , engineering , optics
This contribution reports a simple approach for preparing PMA/TiO 2 composite. In this method, nano TiO 2 powders are previously treated by a combined modification process, namely, the alkali‐treatment followed by oleic acid surface‐grafting. Before polymerization, the modified TiO 2 nanoparticles are dispersed into the maleic anhydride (MA) solution to form stable homogeneous gel. When the reaction temperature is raised to 150°C, the modified nano TiO 2 can initiate the in situ anionic polymerization of MA. Finally, the PMA/TiO 2 composites are obtained, in which all the TiO 2 are fully coated by MA polymer (PMA). Therefore, it is not needed to reclaim the nano initiators because they are blended into the prepared polymers as the nano fillers. TEM and SEM experiment results can strongly demonstrate that the TiO 2 nanoparticles are homogeneously dispersed in PMA matrix. This approach is easy‐to‐operate and applicable to the preparation of other nano composites. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009