polymer a is a linear highly amorphous polymer. it was copolymerized with polymer b, a polymer with significant amount of crystallinity. the copolymerization was carried out as mole percent composition of of A:B = 80:20, 50:50 and 20:80 respectively, to form threehomogenous copolymer systems. Each copolymer system was analyzed in Dynamic Mechanical Analyzer (DMA to obtain information about the change in polymer modulus with increasing temperature; log of modulus (log E) was plotted against temperature (T).The following sets of graphs were obtained from this analysis:
