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Soybean oil based polyisocyanurate cast resins
Author(s) -
Javni Ivan,
Zhang Wei,
Petrović Zoran S.
Publication year - 2003
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.13080
Subject(s) - materials science , ultimate tensile strength , isocyanate , thermal stability , glass transition , composite material , polypropylene , propylene oxide , modulus , young's modulus , oxide , polymer chemistry , polymer , copolymer , polyurethane , chemistry , organic chemistry , ethylene oxide , metallurgy
Two series of polyisocyanurates were prepared from polymeric 4,4′‐diphenylmethane diisocyanate (MDI) and soy‐based or polypropylene oxide polyols by varying isocyanate indexes from 105 to 350. Increasing isocyanate index gave polyisocyanurates with increased thermal stability, flame resistance, tensile strength, modulus, and glass transition. Impact was lower. Soy‐based polyisocyanurates displayed better thermal stability, higher rigidity (modulus), and higher strength than those based on the propylene oxide polyols of the same molecular weight and functionality. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3333–3337, 2003