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Graft copolymers of lignin from straw with 1‐ethenylbenzene: Synthesis and characterization
Author(s) -
Bonini Carlo,
D'Auria Maurizio,
Mauriello Giacomo,
Pucciariello Rachele,
Teghil Roberto,
Tofani Daniela,
Viggiani Licia,
Viggiano Donato,
Zimbardi Francesco
Publication year - 2000
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 - 10.1002/1097-4628(20010103)79:1<72::aid-app80>3.0.co;2-f
Subject(s) - gel permeation chromatography , copolymer , fourier transform infrared spectroscopy , lignin , polystyrene , differential scanning calorimetry , polymer chemistry , materials science , chemistry , nuclear chemistry , polymer , organic chemistry , chemical engineering , physics , engineering , thermodynamics
The synthesis of copolymers between lignin from steam‐exploded straw and 1‐ethenylbenzene is described. Beforehand, lignin from steam‐exploded straw was fully characterized by using elemental analysis, ultraviolet spectroscopy, gel permeation chromatography (GPC), Fourier transform infrared (FTIR), and both 1 H and 13 C nuclear magnetic resonance (NMR) spectroscopy. Using a previously described procedure utilizing calcium chloride and hydrogen peroxide as reagents the synthesis of the copolymers was performed. FTIR of the copolymers showed the presence of both lignin and polystyrene. GPC analysis showed the presence of a fraction with high molecular weights. These results were confirmed from both viscosity data and differential calorimetry. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 72–79, 2001