Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

header
Reach Us reach to JOCPR whatsapp-JOCPR +44 1625708989
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Original Articles: 2012 Vol: 4 Issue: 7

Antimicrobial screening and thermoanalytical studies of newly synthesized copolymer derived from p-hydroxybenzoic acid, and thiosemicarbazide

Abstract

The Copolymer (p-HBTF) was synthesized by condensat ion of p-hydroxybenzoic acid and thiosemicarbazide with formaldehyde in the presence of 2M HCL as a catalys t at 126 ± 2 0 C for 5 hrs. with molar proportion of reactants. The copolymer (p-HBTF) was characterized by element al analysis, FT-IR, UV-Visible 1 H-NMR Spectroscopy. The thermal decomposition behavior of copolymer was stu died by using TGA in static nitrogen atmosphere at a heating rate of 10 0 C/min. Freeman Carroll and Sharp-Wentworth methods were used to calculate the thermal activation energy (Ea), the order of reaction (n), entropy Cha nge ( ∆ S), free energy change ( ∆ F), apperent entropy change ( ∆ S), and frequency factor (Z). The thermal activatio n energy determined with the help of these method was in good agreement with each other. The copolymer possesses antimicrobial activity for certain bacteria such as S. subtilis, , E.coli, S. typhi .

http://sacs17.amberton.edu/

rtp slot demo