Premium
Preparation and characterization of poly(chlorotrifluoroethylene‐ co ‐ethylvinyl ether)/poly(styrene acrylate) core–shells and SiO 2 nanocomposite films via a solution mixing method
Author(s) -
Koti Reddy C.,
Shekharam T.,
Shailaja D.
Publication year - 2012
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.36777
Subject(s) - chlorotrifluoroethylene , materials science , nanocomposite , acrylate , fourier transform infrared spectroscopy , thermal stability , thermogravimetric analysis , polymer chemistry , chemical engineering , composite material , polymer , copolymer , tetrafluoroethylene , engineering
Abstract Nanocomposite particles of poly(chlorotrifluoroethylene‐ co ‐ethylvinyl ether) [poly(CTFE‐ co ‐EVE)]/poly(styrene acrylate) (PSA)/SiO 2 were prepared with poly(CTFE‐ co ‐EVE)/PSA [CS(FS); core–shell (CS) fluoro surfactant (FS)] and hydrophilic SiO 2 nanoparticles by a solution mixing method. This method yielded a homogeneous dispersion of hydrophilic SiO 2 nanoparticles in the CS(FS) matrix. The nanocomposite particle composition was confirmed by Fourier transform infrared spectroscopy and thermogravimetric analysis. A slight improvement in the thermal stability was observed and the glass‐transition temperature of the nanocomposite particles increased compared with the CS(FS) matrix. A remarkable enhancement was observed in the mechanical properties with an increase in the tensile strength from 1.1 to 6.2 MPa and with an increase in the elongation at break from 209.6 to 350.1% for the films with 15 wt % SiO 2 . The presence of a wettable PSA shell on the fluorocore made interaction possible with SiO 2 ; this made it more hygroscopic with a decent water uptake capacity and an enhanced water contact angle. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2012