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Analysis of unsaturated polyester‐polyurethane interpenetrating polymer networks. I: Reaction kinetics and viscosity model
Author(s) -
Lee Sun Suk,
Kim Sung Chul
Publication year - 1991
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760311605
Subject(s) - polyurethane , materials science , kinetics , viscosity , polyester , polymer , chemical engineering , chemical kinetics , polymer chemistry , intrinsic viscosity , composite material , physics , quantum mechanics , engineering
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.