122nd General Meeting of the KCS

Type Poster Presentation
Area Polymer Chemistry
Room No. Grand Ballroom
Time 10월 18일 (목요일) 11:00~12:30
Code POLY.P-35
Subject Preparation and thermomechanical properties of thermoset polyurethane shape memory polymers
Authors Jamin Gu
R&D Center, NOROO Paint, Korea
Abstract This study is to investigate the thermomechanical properties according to the change of hard and soft segment ratios and diol types of polyurethane-based thermoset shape memory polymers(SMPs). SMP films were prepared by reaction of IPDI-prepolymer and three-functional polycaprolactone(PCL) diol. The three kinds of IPDI-prepolymers were synthesized with three different diols that were bisphenol-A, polyoxyethylene bisphenol-A ether and polytetramethylene ether glycol(PTMEG). Also, each IPDI-prepolymer was designed to have different isocyanate equivalent weight. the glass-transition temperature was characterized by dynamic mechanical analysis(DMA), fixity and recovery ratios are investigated using universal testing machine(UTM).
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