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Effects of poly(vinyl acetate) and poly(vinyl chloride‐ co ‐vinyl acetate) low‐profile additives on properties of cured unsaturated polyester resins. II. glass‐transition temperatures and mechanical properties
Author(s) -
Huang YanJyi,
Chen TzongShyang,
Huang JyhGau,
Lee FuhHuah
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.12513
Subject(s) - vinyl acetate , vinyl chloride , glass transition , materials science , polymer chemistry , polyester , maleic anhydride , styrene , thermosetting polymer , polymer , vinyl ester , copolymer , composite material
Abstract Three series of self‐synthesized poly(vinyl acetate)‐based low‐profile additives (LPAs), including poly(vinyl acetate), poly(vinyl chloride‐ co ‐vinyl acetate), and poly(vinyl chloride‐ co ‐vinyl acetate‐ co ‐maleic anhydride), with different chemical structures and molecular weights were studied. Their effects on the glass‐transition temperatures and mechanical properties for thermoset polymer blends made from styrene, unsaturated polyester, and LPAs were investigated by an integrated approach of the static phase characteristics, cured sample morphology, reaction kinetics, and property measurements. Based on Takayanagi mechanical models, the factors that control the glass‐transition temperature in each phase region of the cured samples and the mechanical properties are discussed. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 3347–3357, 2003