Glass Transition Temperature, Compatibility and Viscosity of Poly(methyl metacrylate) Blended with Homo-or Copolymers of Alkyl Metacrylates

Abstract

Abstract Investigation of glass transition temperature and viscosity of binary mixtures of poly(methyl metacrylate) with statistic copolymers of methyl metacrylate and ethyl, butyl or octyl metacrylates as well as mixtures of poly(methyl metacrylate) with poly(ethyl, poly(butyl or poly(octyl metacrylates) has been carried out. The regions of one-and two-phase states of the above-mentioned mixtures were found from the glass transition temperature date. It has been shown that the mixtures of poly(methyl metacrylate) with copolymers of methyl metacrylate in combination with ethyl metacrylate are capable of forming one-phase systems throughout the whole range of the mixture compositions when extensively varying the copolymers compositions. The transition to copolymers of methyl metacrylate involving butyl and especially octyl metacrylates leads to a sharp narrowing of the range of the composition of their mixtures with poly(methyl metacrylate) in which they form one-phase-systems. We have established dependen...