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Properties and thermal degradation study of blend films with poly(4‐vinylpyridine) and lignin
Author(s) -
Cunxiu Guan,
Donghua Chen,
Wanjun Tang,
Changhua Liu
Publication year - 2005
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.21465
Subject(s) - lignin , materials science , thermal stability , glass transition , degradation (telecommunications) , thermal decomposition , decomposition , activation energy , thermogravimetric analysis , kinetics , chemical engineering , polymer chemistry , polymer , composite material , chemistry , organic chemistry , telecommunications , physics , quantum mechanics , computer science , engineering
A series of blend films with different ratio of poly(4‐vinylpyridine) (PVP) to lignin were subjected to dynamic DSC and TGA measurement under nitrogen atmosphere at various heating rates. DSC curves showed that the glass transition temperatures of these blends decreased with the increase of lignin content. TGA studies indicated that the lignin content produced obvious effect on the thermal stability of these blends. The kinetic model function of the thermal decomposition of these blends obeyed the Avrami‐Erofeev model equation, g (α) = [‐ln(1‐α)] 1/m . The degradation kinetic parameters were also obtained. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 1875–1879, 2005