Bhanvase B A, Darda N S, Veerkar N C, Shende A S, Satpute S R, Sonawane S H
Chemical Engineering Department, Laxminarayan Institute of Technology, Nagpur 440033, MS, India.
Chemical Engineering Department, Vishwakarma Institute of Technology, Pune 411037, MS, India.
Ultrason Sonochem. 2015 May;24:87-97. doi: 10.1016/j.ultsonch.2014.11.009. Epub 2014 Nov 13.
Ultrasound assisted in-situ semi-batch emulsion polymerization has been used for the preparation of polyaniline (PANI) and PANI/ZnMoO4 nanocomposite with different loading of ZnMoO4 (ZM) nanoparticles. ZM nanoparticles were functionalized using Myristic acid (MA) for better compatibility with PANI. The cavitational effects induced due to ultrasonic irradiations have been shown significant enhancement in the dispersion of functionalized ZM nanoparticles into the PANI during ultrasound assisted in-situ emulsion polymerization process. TEM images of PANI/ZM nanocomposite particles give the direct evidence of fine dispersion and encapsulation of MA treated ZM nanoparticles in PANI matrix. The presence of ZM nanoparticles in PANI/ZM nanocomposite shows significant improvement in the mechanical (cross-cut adhesion), thermal, anticorrosion and sensing properties of PANI/ZM nanocomposite/alkyd coatings over PANI/alkyd and neat alkyd resin coating. Fine and uniform dispersion of ZM nanoparticles in PANI matrix using this novel synthesis method (PANI (p-type)/ZM (n-type) hetero-junction) improves LPG sensing ability and minimizes response time to sense LPG significantly compared with neat PANI.
超声辅助原位半间歇乳液聚合已用于制备聚苯胺（PANI）以及具有不同负载量钼酸锌（ZM）纳米颗粒的PANI/ZM纳米复合材料。使用肉豆蔻酸（MA）对ZM纳米颗粒进行功能化处理，以使其与PANI具有更好的相容性。在超声辅助原位乳液聚合过程中，超声辐照引起的空化效应已显示出功能化ZM纳米颗粒在PANI中的分散性显著增强。PANI/ZM纳米复合颗粒的透射电子显微镜（TEM）图像直接证明了经MA处理的ZM纳米颗粒在PANI基质中的良好分散和包封。与PANI/醇酸树脂和纯醇酸树脂涂层相比，PANI/ZM纳米复合材料中ZM纳米颗粒的存在显著改善了PANI/ZM纳米复合材料/醇酸树脂涂层的机械性能（划格附着力）、热性能、防腐性能和传感性能。使用这种新颖的合成方法（PANI（p型）/ZM（n型）异质结）使ZM纳米颗粒在PANI基质中实现精细且均匀的分散，与纯PANI相比，提高了液化石油气（LPG）传感能力并显著缩短了检测LPG的响应时间。
