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Melting and crystallization of two types of polyhydroxyalkanoates (PHAs), poly(3-hydroxybutyrate) homopolymer (PHB) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) random copolymer (PHBHHx) were studied via in situ Fourier transform infrared spectroscopy (FTIR). The absorbance variances of the crystalline and the amorphous bands revealed that melting of PHB occurred at a narrow temperature range,...
In order to investigate the effect of interfacial tension on the formation of gradient phase morphology in polymer blends, a saponification reaction was carried out in this study to obtain several kinds of EVA with different contents of -OH groups. These EVAs with different -OH contents, namely with different polarities, were then blended with PP, and thus a series of PP/EVA blends with different...
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