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Synthesis and properties of intumescent, phosphorus‐containing, flame‐retardant polyesters
Author(s) -
Ma Zhiling,
Zhao Wenge,
Liu Yangfang,
Shi Junrui
Publication year - 1997
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(19970321)63:12<1511::aid-app1>3.0.co;2-r
Subject(s) - intumescent , pentaerythritol , fire retardant , copolymer , polyester , polymer chemistry , materials science , monomer , phosphate , solubility , ammonium polyphosphate , chemical engineering , chemistry , organic chemistry , polymer , composite material , engineering
Phosphate‐polyester copolymers were synthesized from spirocyclic pentaerythritol di(phosphate acid monochloride)s (SPDPC), which is an intumescent, phosphate flame retardant. Because of the new monomer being introduced, the structure and properties of the polyester were altered. The effects of the phosphate on the properties of flame retardance oxygen index, (OI), glass‐transition temperature ( T g ), and solubility parameters (δ) were studied. It was found that the OI, T g , and δ increase with increasing SPDPC content in the copolymers. The flame‐retardant mechanism was found to possibly be the solid phase intumescence found by analysis of the SEM photos of the copolymer chars. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 63: 1511‐1515, 1997