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The synthesis and properties of new epoxy resin containing phosphorus and nitrogen groups for flame retardancy
Author(s) -
Wang TsuiShuang,
Parng JongKae,
Shau MinDa
Publication year - 1999
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/(sici)1097-4628(19991010)74:2<413::aid-app24>3.0.co;2-1
Subject(s) - epoxy , curing (chemistry) , differential scanning calorimetry , materials science , thermogravimetric analysis , char , polymer chemistry , thermal stability , polymer , oxide , composite material , chemistry , pyrolysis , organic chemistry , physics , metallurgy , thermodynamics
A new type of epoxy resin, which contained phosphorus oxide and nitrogen groups in the main chain, was synthesized. The structure of the new type of epoxy resin was confirmed by infrared (IR) spectroscopy, 1 H nuclear magnetic resonance ( 1 H‐NMR), and 13 C‐NMR spectroscopic techniques. In addition, compositions of the new synthesized epoxy resin (TGDMO) with three curing agents, for example, bis(3‐aminophenyl) methylphosphine oxide (BAMP), 4,4′‐diaminodiphenylmethane (DDM), and 4,4′‐diaminodiphenylsulfone (DDS), were used for making a comparison of its curing reactivity, heat, and flame retardancy with that of Epon 828 and DEN 438. The reactivities were measured by differential scanning calorimetry (DSC). Through the evaluation of thermal gravimetric analysis (TGA), those polymers which were obtained through the curing reactions between the new epoxy resin and three curing agents (BAMP, DDM, and DDS) also demonstrated excellent thermal properties as well as a high char yield. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 413–421, 1999