Synthesis of poly(styrene-co-maleimide) and poly(octadecene-co-maleimide) nanoparticles and their utilization in paper coating

被引:14
|
作者
Ahokas, Mia [1 ]
Wilen, Carl-Eric [1 ]
机构
[1] Abo Akad Univ, Lab Polymer Technol, Ctr Excellence Funct Mat, FIN-20500 Turku, Finland
关键词
Polyimides; Synthesis; Nanoparticles; Dyes/pigments; Paper coating; STYRENE-MALEIMIDE COPOLYMERS; IMIDIZATION; ANHYDRIDE); KINETICS; POLYMER;
D O I
10.1016/j.porgcoat.2009.08.015
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Aqueous polymer dispersions comprising of poly(styrene-co-maleimide) (SMI) or poly(octadecene-co-maleimide) (OMI) nanoparticles were synthesized by thermal imidization of the corresponding maleic anhydride copolymer precursors with ammonia using an organic solvent free process. Different reaction parameters such as temperature, time, agitation speed and stirrer geometry, and molar ratio of ammonia-to-anhydride were investigated in order to find optimal conditions. The obtained copolymer nanoparticles exhibited glass transition temperatures (T-g's) between 140 and 170 degrees C with particle sizes ranging from 50 to 230 nm. The compositional analysis was conducted by recording H-1 NMR and ATR-FTIR spectra. In addition, SMI dispersions were successfully spray dried and analyzed by SEM. Finally, the polymer dispersion's utility as auxiliary organic pigment in paper coating formulations was evaluated. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:377 / 381
页数:5
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