title: Ultrasound assisted synthesis of PANI/ZnMoO4 nanocomposite for simultaneous improvement in anticorrosion, physico-chemical properties and its application in gas sensing.
abstract: 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.
authors.affiliation: Chemical Engineering Department, Laxminarayan Institute of Technology, Nagpur 440033, MS, India. Electronic address: bharatbhanvase@gmail.com.
authors.forename: B A
authors.initials: BA
authors.lastname: Bhanvase
authors.affiliation: Chemical Engineering Department, Vishwakarma Institute of Technology, Pune 411037, MS, India.
authors.forename: N S
authors.initials: NS
authors.lastname: Darda
authors.affiliation: Chemical Engineering Department, Vishwakarma Institute of Technology, Pune 411037, MS, India.
authors.forename: N C
authors.initials: NC
authors.lastname: Veerkar
authors.affiliation: Chemical Engineering Department, Vishwakarma Institute of Technology, Pune 411037, MS, India.
authors.forename: A S
authors.initials: AS
authors.lastname: Shende
authors.affiliation: Chemical Engineering Department, Bharati Vidyapeeth College of Engineering, Pune, MS, India. Electronic address: drsrsatpute@gmail.com.
authors.forename: S R
authors.initials: SR
authors.lastname: Satpute
authors.affiliation: Department of Chemical Engineering, National Institute of Technology, Warangal 506004, AP, India.
authors.forename: S H
authors.initials: SH
authors.lastname: Sonawane
keywords: Anticorrosive coatings; LPG sensing; PANI/ZM nanocomposite; Response; Ultrasound