There has been a growing interest in compatible blends in which one of the polymers is crystallizable. At appropriate compositions some of this polymer will crystallize, the remainder forms a compatible blend with the other polymer component. In the reported experimental study, an attempt has been made to relate melting point depression of the crystalline component to diluent effects, i. e. , polymer/polymer interactions. Melting point is also a function of lamella thickness, the determination of which is very difficult in such systems. It is assumed in this type of study that the melting point of a crystal in an incompatible matrix will be unchanged. In an attempt to test this assumption the authors have determined the melting behavior of isothermally grown, single crystals of polyethylene (from the same preparation) embedded in a variety of incompatible matrices. The matrices used were polybutadiene, polystyrene, and polyphenylene oxide. This work shows that polymer single crystals embedded in an incompatible polymer matrix can show apparent melting point depressions of up to 5 degree .
|Original language||English (US)|
|Number of pages||5|
|Journal||Journal of polymer science. Part A-2, Polymer physics|
|State||Published - Jan 1 1980|
All Science Journal Classification (ASJC) codes