Synthesis and characterization of terpolymer of N‐cyclohexylmaleimide, methyl methacrylate, and acrylonitrile

Abstract

Terpolymers of N-cyclohexylmaleimide, methyl methacrylate, and acrylonitrile (AN) at different AN feed content were synthesized by suspension polymerization. The thermal properties of the terpolymers such as glass transition temperature (T g ) and Vicat softening temperature (T Vicat ) were determined by torsion braid analysis and Vicat softening temperature tester, respectively. The value of T g and T Vicat decreased with increasing AN feed content. Thermogravimetric analyses were carried out with the results that the incorporated AN units enhanced the thermal stability of the resulting polymers and a second degradation step appeared with the addition of AN. The mechanical properties (tensile strength and impact strength) of the terpolymers were also detected and the results show that the tensile strength and impact strength of terpolymers increase with increasing AN feed content. The rheological results illustrated that the terpolymers showed rheological behavior similar to that of pseudoplastic liquid. The apparent shear viscosity decreased with the increasing of AN feed content. The flow power index n increased with increasing AN feed content.

Synthesis, Characterization and Thermal Degradation of Substituted Acetophenone Based Terpolymers Having Biological Activities

“…Yang and Sun (7) reported terpolymers of N-cyclohexylmaleimide, methyl methacrylate and acrylonitrile by suspension polymerization. Michael et al (8) prepared terpolymer of 8-hydroxyquinoline, guanidine and formaldehyde and also studied thermal degradation to ascertain its thermal stability.…”

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“…Metal-polymer complexes namely metalcomposites have many applications such as in waste water treatment for metal recovery, in hard water treatment via metal-ion exchange, protective coatings, thermally stable and reinforced materials, manufacturing of antimicrobial and surgical materials, gels and ointments for medical uses and other biological activity [3], [4]. According to the literature protocols, it has been found that different typed polymers used as ligand to formed variety of metal-polymer materials [5], [6], [7]. The chemical properties of nitrogen containing functional groups such as azo group, thiazole group and cyanide and thiocyanate groups have been intensively researched in various fields and especially in polymers areas for achieved required and high quality materials [8], [9].…”

Preparation of blends of poly(methyl methacrylate) copolymers with high glass transition temperatures and low hydrophilicity

“…For example, copolymerization of methyl methacrylate (MMA) with maleimide (MI) which has a five‐member ring was discussed by Kita et al . The copolymers have not only high T g , but also excellent toughness . Whereas the residue of MI monomer makes the light transmittance of copolymers decrease sharply .…”