Nanoporous Nanocomposite Hydrogels Composed of Polyvinyl Alcohol and Na-montmorillonite
作者： M. Sirousazar , M. Kokabi , Z. M. Hassan , A. R. Bahramian
DOI: 10.1080/00222348.2012.656010
关键词:
摘要: Polyvinyl alcohol nanoporous nanocomposite hydrogels containing various levels of Na-montmorillonite were prepared by a cyclic freezing–thawing technique. An exfoliated morphology silicate layers was observed for the hydrogels. The uniaxial tensile test indicated that modulus and strength increased with increasing content, while their elongation-at-break values decreased. results showed adding 15 wt% montmorillonite to polyvinyl hydrogels, molecular weight polymer chains between two adjacent cross-links decreased 56% effective cross-linking density up 353%. It is also all hydrogel samples had nanoscale pore diameters network mesh sizes less than 30 nm. structure confirmed transmission electron microscopy observations mercury intrusion porosimetry tests.
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sci-hub.se 参考文章(46)
GQ Max Lu, Xiu Song Zhao, Nanoporous Materials Science and Engineering Imperial College Press. ,vol. 4, pp. 1- 13 ,(2004) , 10.1142/P181
Paul J. Flory, Principles of polymer chemistry ,(1953)
Rebecca M. Gant, Yaping Hou, Melissa A. Grunlan, Gerard L. Coté, Development of a self-cleaning sensor membrane for implantable biosensors Journal of Biomedical Materials Research Part A. ,vol. 90A, pp. 695- 701 ,(2009) , 10.1002/JBM.A.32135
Ghasem Rezanejade Bardajee, Ali Pourjavadi, Rouhollah Soleyman, Novel highly swelling nanoporous hydrogel based on polysaccharide/protein hybrid backbone Journal of Polymer Research. ,vol. 18, pp. 337- 346 ,(2011) , 10.1007/S10965-010-9423-3
El-Sayed A. Hegazy, S. E. Abd El-Aal, M. F. Abou Taleb, A. M. Dessouki, Radiation synthesis and characterization of poly(N‐vinyl‐2‐pyrrolidone/acrylic acid) and poly(N‐vinyl‐2‐pyrrolidone/acrylamide) hydrogels for some metal‐ion separation Journal of Applied Polymer Science. ,vol. 92, pp. 2642- 2652 ,(2004) , 10.1002/APP.20208
Varsha Thomas, Murali Mohan Yallapu, B. Sreedhar, S. K. Bajpai, Breathing-in/breathing-out approach to preparing nanosilver-loaded hydrogels: Highly efficient antibacterial nanocomposites Journal of Applied Polymer Science. ,vol. 111, pp. 934- 944 ,(2008) , 10.1002/APP.29018
Nathan Efron, Philip B. Morgan, Trends in the use of silicone hydrogel contact lenses for daily wear Contact Lens and Anterior Eye. ,vol. 31, pp. 242- 243 ,(2008) , 10.1016/J.CLAE.2008.06.004
Andrew R. Walpole, Zhidao Xia, Crispian W. Wilson, James T. Triffitt, Peter R. Wilshaw, A novel nano-porous alumina biomaterial with potential for loading with bioactive materials. Journal of Biomedical Materials Research Part A. ,vol. 90, pp. 46- 54 ,(2009) , 10.1002/JBM.A.32067
Liyuan Song, Meifang Zhu, Yanmo Chen, Kazutoshi Haraguchi, Temperature- and pH-Sensitive Nanocomposite Gels with Semi-Interpenetrating Organic/Inorganic Networks Macromolecular Chemistry and Physics. ,vol. 209, pp. 1564- 1575 ,(2008) , 10.1002/MACP.200800133
Mohammad Sirousazar, Mehrdad Kokabi, Zuhair Muhammad Hassan, In vivo and cytotoxic assays of a poly(vinyl alcohol)/clay nanocomposite hydrogel wound dressing. Journal of Biomaterials Science-polymer Edition. ,vol. 22, pp. 1023- 1033 ,(2011) , 10.1163/092050610X497881