Effect of poly(vinyl pyrrolidone)on the morphology and physical properties of poly(vinyl alcohol)/sodium montmorillonite nanocomposite films

作     者：Dibyendu Mondal Md.Masud R.Mollick Biplab Bhowmick Dipanwita Maity Mrinal K.Bain Dipak Rana Asis Mukhopadhyay Kausik Dana Dipankar Chattopadhyay 

作者机构：Department of Polymer Science and TechnologyUniversity of Calcutta Department of Chemical and Biological EngineeringIndustrial Membrane Research InstituteUniversity of Ottawa Department of Jute and Fiber TechnologyInstitute of Jute TechnologyUniversity of Calcutta Advanced Clay and Traditional Ceramics DivisionCentral Glass and Ceramic Research Institute 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2013年第23卷第6期

页      面：579-587页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Council of Scientific and Industrial Research, India, CSIR University Grants Commission, UGC 

主　　题：Poly(vinyl alcohol) Poly(vinyl pyrrolidone) Sodium montmorillonite Nanocomposites Mechanical properties Water resistance properties 

摘      要：Nanocomposites of poly(vinyl alcohol)(PVA),poly(vinyl pyrrolidone)(PVP) and sodium montmorillonite(Na+MMT) were prepared by solution mixing and then cast into films.X-ray diffraction analysis and images of transmission electron microscopy establish the formation of PVA/Na+MMT intercalated *** and highly intercalated PVA/PVP/Na+MMT nanocomposite formed in the presence of *** of PVP in PVA/Na+MMT matrix enhances the hydrogen bonding interactions between PVA and Na+MMT and thus increases the mechanical properties and thermal stability of PVA/PVP/Na+MMT nanocomposites compared to PVA/Na+MMT *** interactions between PVA,PVP and Na+MMT were established by the Fourier transform infrared *** moisture absorption tendency of both the PVA and PVA/PVP films reduced after the incorporation of Na+MMT at 75%constant relative *** scanning calorimetry studies show that the presence of PVP and Na+MMT both are responsible for reducing the heat of fusion,and crystallinity of *** flow behavior of the PVA,PVA/PVP and its nanocomposite solutions has been also *** vapor permeability of PVA/PVP/Na+MMT composite films decreased in the presence of nanoclay due to increasing tortuous paths for diffusion.