Synthesis, Chacterization, and Thermal Study of Terpolymeric Resin Derived from m‐cresol, Hexamine and Formaldehyde

Abstract

Terpolymeric resin was prepared from m-cresol (0.1M), hexamine (0.05M) and formaldehyde (0.2M) by acid catalyzed polycondensation method using 1M HCl in temperature range of 122-130°C.The resin was abbreviated as m-CHF-I. The molecular weight of terpolymer was determined by non-aqueous conductometric titration technique. The structure of resin was determined by its elemental analysis, UV-VIS, IR, and NMR data. The thermokinetic parameters were determined using Freeman-Carroll (FC) and Sharp Wentworth (SW) method in temperature range (410-485°C).The values of activation energies (Ea), entropy (∆S), and free energies (∆G) were in good agreement . The order of degradation reaction determined by FC method was confirmed by SW method.

Synthesis and Semiconducting Behavior of Terpolymer Resin-I Derived from Sulphanilic Acid, Melamine and Formaldehyde

“…The SAMF-I resin so obtained was filtered, washed several times with hot distilled water, dried in air and powdered. The yield was found to be 68% of the synthesized resin 12,13 . Reaction scheme is given in Figure 1.…”

Synthesis, Characterization and Thermogravimetric Analysis of 2,2’-Biphenol Based Terpolymer Resins

“…Peterson et al have carried out thermogravimetric analysis in inert as well as oxidative atmosphere 21 . The thermal stability of polymers and copolymers has been extensively studied by employing the method of thermogravimetric analysis by several authors [22][23][24][25] .…”