Topic
Miscibility
About: Miscibility is a research topic. Over the lifetime, 5521 publications have been published within this topic receiving 133547 citations. The topic is also known as: miscible.
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TL;DR: In this paper, the effect of clay exfoliation extent on the crystallization behavior of poly(l-lactic acid), PLLA, and its nanocomposites from the melt was investigated.
Abstract: Time-lapsed Fourier transform infrared (FTIR) spectroscopy was employed to probe chain conformational changes during the isothermal crystallization of poly(l-lactic acid), PLLA, and its nanocomposites from the melt. To study the effect of clay exfoliation extent on the crystallization behavior of PLLA, intercalated and exfoliated nanocomposites were fabricated by solution casting two commercially available organoclays with different degrees of matrix miscibility. By solely varying the degree of miscibility between the organic modifier and the polymer matrix, fully intercalated and exfoliated nanocomposites were obtained. This system allowed us to systematically investigate the effect of degree of clay exfoliation on the chain conformational changes during the crystallization process. In the case of neat PLLA, interchain interactions preceded intrachain interactions during the crystallization. Conversely, the exfoliated nanocomposites exhibited an opposite behavior in that 103 helix formation and backbone ...
187 citations
TL;DR: The rate of chain scission of PGLA was decreased and that of PCL and PLLA increased and a corresponding delay in the onset of weight loss was also observed.
187 citations
TL;DR: In this article, the properties of poly(butylene succinate) and poly(ethylene oxide) polymers were investigated by differential scanning calorimetry and optical microscopy.
184 citations
TL;DR: The sol-to-gel transition temperature of polymer mixture aqueous solutions was well described by an empirical equation of miscible blends, indicating miscibility of the two polymer systems in water on the molecular level.
184 citations
TL;DR: It appears that felodipine-PVP solid dispersions are susceptible to moisture-induced immiscibility when stored at a relative humidity >or=75%.
183 citations