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Synthesis and air separation of soluble terpolymers from Aniline, Toluidine, and Xylidine
Author(s) -
Li XinGui,
Huang MeiRong,
Zhu LiHua,
Yang Yuliang
Publication year - 2001
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.1908
Subject(s) - ammonium persulfate , polymer chemistry , thermogravimetry , polymerization , differential scanning calorimetry , monomer , aniline , materials science , cellulose , thermostability , potassium persulfate , polymer , chemistry , organic chemistry , inorganic chemistry , composite material , enzyme , physics , thermodynamics
A series of terpolymers were synthesized by oxidative polymerization of aniline, o ‐toluidine, and 2,3‐xylidine with three monomer ratios using ammonium persulfate as an oxidant in two acidic media. The yield and intrinsic viscosity of the terpolymers were studied by changing the polymerization temperature and medium. The resulting terpolymers were characterized by 1 H–NMR, wide‐angle X‐ray diffraction, differential scanning calorimetry, thermogravimetry, and constant pressure‐variable volume methods. The results showed that the terpolymers are amorphous and exhibit enhanced solubility, high thermostability, and high char yield, greater than 35 wt % at 900°C in nitrogen. A blend membrane of the terpolymer with ethyl cellulose shows good air‐separation ability. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 790–798, 2001