TY - JOUR AU1 - Ruffier, M. AU2 - Merle, G. AU3 - Pascault, J. P. AB - Blends of unsaturated polyester resin and polyvinylacetate (PVAc) were molded with a new instrument called the Plastoreactomat (PRM). The shrinkage and exothermic peak of polymerization were recorded during moding, and the influence of the processing conditions (pressure and temperature) on these phenomena and on the morphology was investigated for various PVAc contents. Within the limits of this study, it was found that shrinkage increases as the temperature and pressure increase. These results are discussed in terms of a competition between the phase separation and the reaction rates. In addition, it was verified that a co‐continuous two‐phase system consisting of the PVAc and the polyester network enhances the low‐profile behavior. TI - Influence of processing conditions on shrinkage behavior of low profile unsaturated polyester resins. I: Systems without fillers JF - Polymer Engineering & Science DO - 10.1002/pen.760330804 DA - 1993-04-01 UR - https://www.deepdyve.com/lp/wiley/influence-of-processing-conditions-on-shrinkage-behavior-of-low-Jh2tkzBUG9 SP - 466 EP - 473 VL - 33 IS - 8 DP - DeepDyve ER -