Order-disorder transition in eicosylated polyethyleneimine comblike polymers
文献类型：期刊论文
| 作者 | Shi HF ; Zhao Y ; Jiang SC ; Xin JH ; Rottstegge J ; Xu DF ; Wang DJ |
| 刊名 | polymer
 |
| 出版日期 | 2007 |
| 卷号 | 48期号:9页码:2762-2767 |
| 关键词 | FLEXIBLE SIDE-CHAINS BIOSYNTHETIC POLY(GAMMA-GLUTAMIC ACID) POLYELECTROLYTE-SURFACTANT COMPLEXES SUBSTITUTED SEMIFLEXIBLE POLYMERS HEXAGONAL PHASE-TRANSITION NUCLEAR MAGNETIC-RESONANCE COPOLYMER-LIKE SYSTEMS X-RAY-SCATTERING SOLID-STATE NORMAL-TRITRIACONTANE |
| ISSN号 | 0032-3861 |
| 通讯作者 | wang dj |
| 中文摘要 | order-disorder transition (odt) behavior in eicosylated polyethyleneimine (pei20c) comblike polymer obtained by grafting n-eicosyl group on polyethyleneimine backbone was systematically investigated by the combination of differential scanning calorimetry (dsc), wide-angle x-ray diffraction (waxd), fourier transform infrared (ftir) spectroscopy as well as solid-state high resolution nuclear magnetic resonance (nmr) spectroscopy. dsc investigations showed two obvious transitions, assigned to the transitions (1) from orthorhombic to hexagonal and (2) from hexagonal to amorphous phase, respectively. these transitions are induced by the variations of alkyl side chain conformation and packing structure with temperature changing, which consequently lead to the destruction of original phase equilibrium. the odt behavior can also be confirmed by spectroscopic methods like waxd, ftir and nmr. the ordered structure and the transition behavior of the alkyl side chains confined by the pei backbone are obviously different from those of pristine normal alkanes. the transition mechanism of odt and the origin of the phase transition behavior in pei20c comblike polymer were discussed in detail in this paper. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000246329300038 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/13465]  |
| 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. Order-disorder transition in eicosylated polyethyleneimine comblike polymers[J]. polymer,2007,48(9):2762-2767. |
| APA | Shi HF.,Zhao Y.,Jiang SC.,Xin JH.,Rottstegge J.,...&Wang DJ.(2007).Order-disorder transition in eicosylated polyethyleneimine comblike polymers.polymer,48(9),2762-2767. |
| MLA | Shi HF,et al."Order-disorder transition in eicosylated polyethyleneimine comblike polymers".polymer 48.9(2007):2762-2767. |
入库方式： OAI收割
来源：长春应用化学研究所
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