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Preparation and characterization of poly[acrylamide‐ co ‐3‐(acryloylamino)propyldodecyldimethylammonium bromide]/polyoxometalate composite microspheres
Author(s) -
Li Hong,
Cui Xin'ai,
Shen Shukun,
Hu Daodao
Publication year - 2011
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.33782
Subject(s) - thermogravimetric analysis , composite number , ammonium bromide , materials science , copolymer , polymer chemistry , phosphotungstic acid , emulsion polymerization , fourier transform infrared spectroscopy , bromide , polyoxometalate , acrylamide , chemical engineering , polymerization , nuclear chemistry , catalysis , chemistry , polymer , composite material , organic chemistry , pulmonary surfactant , engineering
Surfmer [3‐(acryloylamino)propyl]dodecyldimethyl ammonium bromide (APDDAB) was synthesized and characterized. On the basis of the reverse emulsion polymerization technique, poly[acrylamide‐ co ‐3‐(acryloylamino)propyldodecyldimethylammonium bromide] [P(AM‐ co ‐APDDAB)] copolymer microgels were obtained with the copolymerization of acrylamide and APDDAB. The P(AM‐ co ‐APDDAB)/polyoxotungstates composite microspheres were prepared with the ion‐exchange reaction of the P(AM‐ co ‐APDDAB) microgels with phosphotungstic acid (H 3 PW 12 O 40 ). The morphologies and components of the composite microspheres were characterized by scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The results indicate that the P(AM‐ co ‐APDDAB)/PW 12 O 40 composite microspheres all had a core–shell structure. For the composite microspheres, the hydrogel P(AM‐ co ‐APDDAB) was dominantly located in the core, and the complexes of PW 12 O 40 3− with APDDAB were mainly located in the surface; these features made the composite microspheres amphiphilic and provided for potential catalysis in a two‐phase reaction. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011