TY - EJOUR
AU - Shekh, Mehdihasan I.
AU - Patel, Dijit M.
AU - Patel, Nirmal N.
AU - Patel, Umesh S.
AU - Patel, Kaushal P.
PY - 2023
DA - November
TI - Methacrylate copolymers and their composites with nano-CdS: synthesis, characterization, thermal behavior, and antimicrobial properties
T2 - International Journal of Industrial Chemistry
VL - 9
L1 - https://oiccpress.com/international-journal-of-industrial-chemistry/article/methacrylate-copolymers-and-their-composites-with-nano-cds-synthesis-characterization-thermal-behavior-and-antimicrobial-properties/
DO - https://doi.org/10.1007/s40090-018-0146-3
N2 - Homo- and copolymers of 2-(N-phthalimido)ethyl methacrylate (NPEMA) and p-chlorophenyl methacrylate (PCPMA) were prepared in N,N-dimethyl formamide (DMF) solution at 70 °C using 2,2-azo-bisisobutyronitrile (AIBN) as initiator. The nano-CdS-doped polymer composite of NPEMA and PCPMA was prepared via in situ technique. The homo- and copolymers of NPEMA and PCPMA were characterized using FT-IR spectroscopy and gel permeation chromatography (GPC). The polymer nano composites were characterized using FT-IR spectroscopy, X-ray diffraction, and transmission electron microscopy. The reactivity ratios (r1 and r2) were obtained from the various linear graphical methods. The values of r1 (NPEMA) = 0.55 and r2 (PCPMA) = 1.30 were found from the same graphical methods. The copolymer microstructures were found from the mean sequence length, run number, and dyad fraction. Thermal behavior of polymers and polymer nano composites under nitrogen atmosphere was studied. The activation energies of neat polymers were varied in the range of 56–85 kJ/mol, while 28–56 kJ/mol energies were found for nano-CdS-doped polymer composites. The thermodynamic parameters of thermal degradation were also obtained. Kinetic and thermodynamic parameters were confirming the stability of the neat polymers than polymer nano composites. The polymers were assessed on different microorganisms for obtaining the antimicrobial properties. Overall, the polymers permit 10–52, 20–58, and 18–56% growth of bacteria, fungi, and yeast, respectively.
IS - 2
PB - OICC Press
KW - Antimicrobial properties, Copolymerization, Polymer nano composites, Reactivity ratio, Thermal properties 
EN -