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Porous bead aliphatic–aromatic methacrylate copolymers. VII. TG, DTA, DSC, and inverse gas chromatography studies
Author(s) -
Wójcik Anna B.
Publication year - 1990
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.1990.070390115
Subject(s) - copolymer , inverse gas chromatography , glass transition , materials science , naphthalene , amorphous solid , thermal stability , polymer chemistry , bead , methacrylate , porosity , polymer , chemical engineering , methyl methacrylate , differential scanning calorimetry , chemistry , organic chemistry , thermodynamics , composite material , physics , engineering
The thermal behavior of porous bead methyl methacrylate–di(methacryloyloxymethyl)naphthalene (DMN) copolymers was investigated by TG, DTA, and DSC measurements as well as the inverse gas chromatography method using several different molecular probes. TG and DTA results proved copolymer stability up to 250°C. The retention diagrams for all probes used showed the temperature transitions among which one corresponds to glassy transition of amorphous PMMA. The other features observed on the retention diagrams correspond to a segmental mobility of weakly crosslinked copolymer parts.