A cellulosic liquid crystal pool for cellulose nanocrystals: Structure and molecular dynamics at high shear rates
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- 作者：Coro Echeverriaa ; Pedro L. Almeidaa ; b ; Gabriel Feioa ; Joã ; o L. Figueirinhasc ; Maria H. Godinhoa ; mhg@fct.unl.pt" class="auth_mail" title="E-mail the corresponding author
- 关键词：Cellulose ; Liquid crystal ; Cellulose nanocrystals ; Rheo-NMR ; Rheology
- 刊名：European Polymer Journal
- 出版年：2015
- 出版时间：November 2015
- 年：2015
- 卷：72
- 期：Complete
- 页码：72-81
- 全文大小：2218 K
文摘
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Above a critical CNC concentration (2 wt.% < CNC wt.% < 5 wt.%) the cholesteric phase of HPC/H2O solution is strongly affected.
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XRD and spectroscopy measurements indicate that CNC affect the cholesteric phase of LC-HPC solution.
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Rheo-NMR study and dynamic oscillatory measurements demonstrate that CNCs restricts the mobility of LC-HPC chains.
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The presence of CNC delays the recovery of the cholesteric structure.