Synthesis of elastin-based polymer and evaluation of its intermolecular interactions with hydroxypropyl methylcellulose.

Autor:	Mahesh, B., Nanjundaswamy, G. S., Channe Gowda, D., Siddaramaiah, B.
Předmět:	ELASTIN NUCLEAR magnetic resonance spectroscopy POLYMERS METHYLCELLULOSE INFRARED spectroscopy HYDROGEN bonding
Zdroj:	Journal of Applied Polymer Science; 9/19/2017, Vol. 134 Issue 36, p1-N.PAG, 10p
Abstrakt:	The parent repeating sequence of elastin, poly(GVGVP), was synthesized using solution phase method and characterized by 13C- and ¹H-NMR spectroscopy. In order to study the polymer--polymer interactions between poly(GVGVP) and hydroxyl propyl methyl cellulose (HPMC), the blends were prepared both in aqueous and solid phase and examined using various analytical techniques. The viscometric measurements have been carried out at 24 °C and the interaction parameters such as α, β, µ, and Δ[ƞ]m revealed the miscible nature of the poly(GVGVP)/HPMC blend systems. In addition, Fourier-transform infrared spectroscopy showed the formation of strong intermolecular hydrogen bond between poly(GVGVP) and HPMC networks. This result was further supported by glass transition temperature (Tg), scanning electron microscopic, and X-ray diffraction studies. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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