Analysis of unsaturated polyester-polyurethane interpenetrating polymer networks. I: Reaction kinetics and viscosity model

✍ Scribed by Sun Suk Lee; Sung Chul Kim

• Publisher: Society for Plastic Engineers
• Year: 1991
• Tongue: English
• Weight: 535 KB
• Volume: 31
• Category: Article
• ISSN: 0032-3888
• DOI: 10.1002/pen.760311605

✦ Synopsis

Abstract

The reaction kinetics and viscosity behavior during the reaction injection molding (RIM) process of unsaturated polyester (UPE)‐Polyurethane (PU) interpenetrating polymer networks (IPNs) were studied. The interaction between the reactants of the component polymers was reflected in the reaction kinetic model. The intermediate reaction products having a certain conversion level were prepared in order to obtain the conversion dependence of viscosity. The composition dependence of blend viscosity was also evaluated for, the oligomeric mixture.