A HIGH-RESOLUTION SOLID-STATE NMR AND DSC STUDY OF MISCIBILITY AND CRYSTALLIZATION BEHAVIOR OF POLY(VINYL ALCOHOL)/POLY(N-VINYL-2-PYRROLIDONE) BLENDS

	A HIGH-RESOLUTION SOLID-STATE NMR AND DSC STUDY OF MISCIBILITY AND CRYSTALLIZATION BEHAVIOR OF POLY(VINYL ALCOHOL)/POLY(N-VINYL-2-PYRROLIDONE) BLENDS
	FENG HQ ; FENG ZL ; SHEN LF
刊名	polymer
	1993
卷号	34 期号:12 页码:2516-2519
关键词	NUCLEAR MAGNETIC-RESONANCE C-13 NMR RELAXATION PARAMETERS LINEAR POLYETHYLENE PROTON T1 COMPATIBILITY SPECTRA
ISSN号	0032-3861
中文摘要	blends of crystallizable poly(vinyl alcohol) (pva) with poly(n-vinyl-2-pyrrolidone) (pvpy) were studied by c-13 cross-polarization/magic angle spinning (cp/mas) n.m.r. and d.s.c. the c-13 cp/mas spectra show that the blends were miscible on a molecular level over the whole composition range studied, and that the intramolecular hydrogen bonds of pva were broken and intermolecular hydrogen bonds between pva and pvpy formed when the two polymers were mixed. the results of a spin-lattice relaxation study indicate that blending of the two polymers reduced the average intermolecular distance and molecular motion of each component, even in the miscible amorphous phase, and that addition of pvpy into pva has a definite effect on the crystallinity of pva in the blends over the whole composition range, yet there is still detectable crystallinity even when the pvpy content is as high as 80 wt%. these results are consistent with those obtained from d.s.c. studies.
收录类别	SCI收录期刊论文
语种	英语
公开日期	2011-01-19 ; 2011-06-10
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/36145]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	FENG HQ,FENG ZL,SHEN LF. A HIGH-RESOLUTION SOLID-STATE NMR AND DSC STUDY OF MISCIBILITY AND CRYSTALLIZATION BEHAVIOR OF POLY(VINYL ALCOHOL)/POLY(N-VINYL-2-PYRROLIDONE) BLENDS[J]. polymer,1993,34(12):2516-2519.
APA	FENG HQ,FENG ZL,&SHEN LF.(1993).A HIGH-RESOLUTION SOLID-STATE NMR AND DSC STUDY OF MISCIBILITY AND CRYSTALLIZATION BEHAVIOR OF POLY(VINYL ALCOHOL)/POLY(N-VINYL-2-PYRROLIDONE) BLENDS.polymer,34(12),2516-2519.
MLA	FENG HQ,et al."A HIGH-RESOLUTION SOLID-STATE NMR AND DSC STUDY OF MISCIBILITY AND CRYSTALLIZATION BEHAVIOR OF POLY(VINYL ALCOHOL)/POLY(N-VINYL-2-PYRROLIDONE) BLENDS".polymer 34.12(1993):2516-2519.