Effect of main-chain rigidity on the phase transitional behavior of comblike polymers

	Effect of main-chain rigidity on the phase transitional behavior of comblike polymers
	Shi HF ; Zhao Y ; Jiang SC ; Rottstegge J ; Xin JH ; Wang DJ ; Xu DF
刊名	macromolecules
	2007
卷号	40 期号:9 页码:3198-3203
关键词	FLEXIBLE SIDE-CHAINS ROD POLYMERS SOLID-STATE C-13 NMR CHEMICAL-SHIFTS X-RAY POLYETHYLENE CRYSTALLIZATION CRYSTALLINITY POLYAMIDES
ISSN号	0024-9297
通讯作者	shi hf
中文摘要	the influence of the rigidity of polymer backbones on the side-chain crystallization and phase transition behavior was systematically investigated by a combination of differential scanning calorimetry (dsc), wide-angle x-ray diffraction (waxd), fourier transform infrared spectroscopy (ftir), and high-resolution solid-state nuclear magnetic resonance spectroscopy (nmr). dsc investigation indicated that the crystallization number of alkyl carbon atoms of the side chains grafted onto the rigid polymer backbone, poly(p-benzamide) (pba), is much lower than that of the alkyl carbon atoms of the side chains grafted onto the flexible polymer backbone, poly(ethyleneimine) (pei), implying that the conformational state of the polymer backbones has a strong effect on the side-chain crystallization behavior in comblike polymers. waxd and ftir results proved that these two comblike polymers pack into hexagonal (pba18c) and orthorhombic (pei18c) crystals, respectively, depending on the adjusting ability of the polymer backbones for particular conformational states. it was also found that the presence of the crystalline-amorphous interphase (delta = 31.6 ppm) in pba18c detected by solid-state c-13 nmr spectroscopy can be attributed to the rigid pba backbone, which restricts the mobility of the alkyl side chains.
收录类别	SCI
语种	英语
WOS记录号	WOS:000245900200033
公开日期	2010-07-13
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/13455]
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	Shi HF,Zhao Y,Jiang SC,et al. Effect of main-chain rigidity on the phase transitional behavior of comblike polymers[J]. macromolecules,2007,40(9):3198-3203.
APA	Shi HF.,Zhao Y.,Jiang SC.,Rottstegge J.,Xin JH.,...&Xu DF.(2007).Effect of main-chain rigidity on the phase transitional behavior of comblike polymers.macromolecules,40(9),3198-3203.
MLA	Shi HF,et al."Effect of main-chain rigidity on the phase transitional behavior of comblike polymers".macromolecules 40.9(2007):3198-3203.