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Microwave‐assisted preparation of poly(2‐EHA‐ co ‐ST) copolymer and poly(2‐EHA‐ co ‐ST)/MMT nanocomposite
Author(s) -
Biswal Trinath,
Samal Ramakanta,
Sahoo Prafulla K.
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.36298
Subject(s) - copolymer , thermogravimetric analysis , materials science , nanocomposite , montmorillonite , differential scanning calorimetry , scanning electron microscope , polymer chemistry , fourier transform infrared spectroscopy , polymerization , chemical engineering , transmission electron microscopy , monomer , composite material , polymer , nanotechnology , physics , engineering , thermodynamics
Copolymerization of 2‐ethylhexylacrylate and styrene was performed in presence of benzoyl peroxide as initiator at varying concentrations of the comonomers in a microwave oven. Montmorillonite (MMT) clay was added with a view to prepare nanocomposites, which actually enhanced the water absorption capacity and pressure sensitive adhesive properties. The copolymer and its nanocomposite were characterized by Fourier Transform Infrared, 1 H‐ and 13 C‐NMR, thermogravimetric‐differential thermal analysis (TG‐DTA), differential scanning calorimeter, scanning electron microscopy, X‐ray diffraction (XRD), and transmission electron microscopy (TEM). The MMT layers were partially exfoliated/intercalated during the polymerization process as evident from the XRD and TEM observations. Their adhesive properties, water absorbancy, and biodegradability in different conditions were studied for their future applications. The monomer reactivity ratios were determined using Finemann–Ross and Kelen–Tüdos method. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012