Volume 12, Issue 4
Revealing the Weak Interaction Mechanism of Crystalline Cellulose Iα by Molecular Dynamics Simulations

Hong-Hui Zhang & Xue-Wei Jiang

Journal of Fiber Bioengineering & Informatics, 12 (2019), pp. 167-178.

Published online: 2019-12

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  • Abstract

According to our previous works on cellulose Iβ and Iα, the weak interactions, though easily ignored, play certain role in the stability mechanism of nature cellulose. These weak interactions should never be ignored or underestimated. In this work, a molecular dynamics study of cellulose Iα was reported to evaluate the weak interactions under various temperatures. The polar and non-polar solvation interactions and hydrogen bonding were taken into account. The Van der Waals, electrostatic, polar solvation and non-polar solvation energy per chain were estimated up to −131.68, −56.38, 29.16 and −41.76 Kcal/mol at room temperature. The weak interactions behaviors of cellulose Iα, including that of the cellulose Iβ and Iα reported previously, were compared. The results indicate that hydrogen bonding contribute obviously for the intrachain stability. The interchain electrostatic interaction maintain a reasonable level under 300 K but decreases rapidly with the ascending of temperature. The polar and non-polar solvation interaction plays an important role not only to interchain under high temperature but also to the intersheet stability. In addition, the hydrogen bonding in intersheet is weaker than that of intrachain and interchain. The result is same as cellulose Iβ that relatively weak hydrogen bonding and strong nonbonded interactions keep the intersheet stability collaboratively.

  • Keywords

Weak Interaction Cellulose Iα Molecular Dynamics Hydrogen Bonding

  • AMS Subject Headings

  • Copyright

COPYRIGHT: © Global Science Press

  • Email address

xwjiang@wtu.edu.cn (Xue-Wei Jiang)

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@Article{JFBI-12-167, author = {Zhang , Hong-Hui and Jiang , Xue-Wei }, title = {Revealing the Weak Interaction Mechanism of Crystalline Cellulose Iα by Molecular Dynamics Simulations}, journal = {Journal of Fiber Bioengineering and Informatics}, year = {2019}, volume = {12}, number = {4}, pages = {167--178}, abstract = {

According to our previous works on cellulose Iβ and Iα, the weak interactions, though easily ignored, play certain role in the stability mechanism of nature cellulose. These weak interactions should never be ignored or underestimated. In this work, a molecular dynamics study of cellulose Iα was reported to evaluate the weak interactions under various temperatures. The polar and non-polar solvation interactions and hydrogen bonding were taken into account. The Van der Waals, electrostatic, polar solvation and non-polar solvation energy per chain were estimated up to −131.68, −56.38, 29.16 and −41.76 Kcal/mol at room temperature. The weak interactions behaviors of cellulose Iα, including that of the cellulose Iβ and Iα reported previously, were compared. The results indicate that hydrogen bonding contribute obviously for the intrachain stability. The interchain electrostatic interaction maintain a reasonable level under 300 K but decreases rapidly with the ascending of temperature. The polar and non-polar solvation interaction plays an important role not only to interchain under high temperature but also to the intersheet stability. In addition, the hydrogen bonding in intersheet is weaker than that of intrachain and interchain. The result is same as cellulose Iβ that relatively weak hydrogen bonding and strong nonbonded interactions keep the intersheet stability collaboratively.

}, issn = {2617-8699}, doi = {https://doi.org/10.3993/jfbim00324}, url = {http://global-sci.org/intro/article_detail/jfbi/13570.html} }
TY - JOUR T1 - Revealing the Weak Interaction Mechanism of Crystalline Cellulose Iα by Molecular Dynamics Simulations AU - Zhang , Hong-Hui AU - Jiang , Xue-Wei JO - Journal of Fiber Bioengineering and Informatics VL - 4 SP - 167 EP - 178 PY - 2019 DA - 2019/12 SN - 12 DO - http://dor.org/10.3993/jfbim00324 UR - https://global-sci.org/intro/article_detail/jfbi/13570.html KW - Weak Interaction KW - Cellulose Iα KW - Molecular Dynamics KW - Hydrogen Bonding AB -

According to our previous works on cellulose Iβ and Iα, the weak interactions, though easily ignored, play certain role in the stability mechanism of nature cellulose. These weak interactions should never be ignored or underestimated. In this work, a molecular dynamics study of cellulose Iα was reported to evaluate the weak interactions under various temperatures. The polar and non-polar solvation interactions and hydrogen bonding were taken into account. The Van der Waals, electrostatic, polar solvation and non-polar solvation energy per chain were estimated up to −131.68, −56.38, 29.16 and −41.76 Kcal/mol at room temperature. The weak interactions behaviors of cellulose Iα, including that of the cellulose Iβ and Iα reported previously, were compared. The results indicate that hydrogen bonding contribute obviously for the intrachain stability. The interchain electrostatic interaction maintain a reasonable level under 300 K but decreases rapidly with the ascending of temperature. The polar and non-polar solvation interaction plays an important role not only to interchain under high temperature but also to the intersheet stability. In addition, the hydrogen bonding in intersheet is weaker than that of intrachain and interchain. The result is same as cellulose Iβ that relatively weak hydrogen bonding and strong nonbonded interactions keep the intersheet stability collaboratively.

Hong-Hui Zhang & Xue-Wei Jiang . (2019). Revealing the Weak Interaction Mechanism of Crystalline Cellulose Iα by Molecular Dynamics Simulations. Journal of Fiber Bioengineering and Informatics. 12 (4). 167-178. doi:10.3993/jfbim00324
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