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Polymerization studies: The application of differential thermogravimetric analysis
Author(s) -
Popović Ivanka G.,
Katsikas Lynne,
Weller Horst,
Schrötter Susanne,
Veliĉkoví Jovan S.
Publication year - 1993
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.1993.070500819
Subject(s) - thermogravimetric analysis , polymerization , methyl methacrylate , polymer chemistry , alkyl , photopolymer , radical polymerization , polymer , methacrylate , materials science , differential thermal analysis , chemistry , organic chemistry , physics , diffraction , optics
The application of differential thermogravimetric analysis (DTGA) to the study of polymerization mechanisms is illustrated using as examples the radical polymerization of di‐ n ‐alkyl itaconates and methyl methacrylate (MMA). Five poly(di‐ n ‐alkyl itaconates) were prepared in bulk, both in the presence and absence of n ‐dodecyl mercaptan and in solution using AIBN as initiator. The poly(methyl methacrylate) (PMMA) was photoinitiated using colloidal CdS as a photosensitizer. The thermal properties of the resulting polymers are described in terms of the proposed polymerization mechanisms. The advantages and disadvantages of DTGA for the identification of thermally weak structures are discussed. © 1993 John Wiley & Sons, Inc.