Radical Copolymerization of Maleimide Derivatives with n-butyl Acrylate and Characterization of Polymers

Abstract

The free radical initiated copolymerization of n-butyl acrylate with N-[4-N′-(aniline amino-carbonyl) phenyl] maleimide (APM), N-[4-N′-{(4-chlorophenyl) amino-carbonyl) phenyl] maleimide (CPM), N-[4-N′-{(4-methylphenyl) amino-carbonyl} phenyl] maleimide (MPM), and N-[4-N′-{(4-methoxy phenyl) amino-carbonyl) phenyl] maleimide (MePM) was carried out in THF at 65°C. The polymers were characterized by solubility test and intrinsic viscosity. The structure of copolymers was analyzed by FT-IR and 1H-NMR spectroscopy. The thermal behavior of copolymers was studied by TGA. The initial decomposition temperature of copolymer samples was in the range of 200°C to 275°C.

Keywords:

• Characterization
• maleimide
• radical polymerization
• thermal stability

Acknowledgements

We are thankful to CDRI Lucknow and SICART Vallabh-vidhyanager (Gujrat) for analysis work. One of the authors, Shiv Narayan Paliwal, is thankful to UGC New Delhi for financial assistance.

Notes

CAPMB: Copoly-N-[4-N′-(anilino amino-carbonyl) phenyl] maleimide-co-BA.

CCPMB: Copoly-N-[4-N′-{(4-chloro phenyl) amino-carbonyl) phenyl] maleimide-co-BA.

CMPMB: Copoly-N-[4-N′-{(4-methyl phenyl) amino-carbonyl) phenyl] maleimide-co-BA.

CMePMB: Copoly-N-[4-N′-{(4-methoxy phenyl)amino-carbonyl)phenyl] maleimide –co-BAMI: substituted maleimide.

S = Soluble, IS = Insoluble, PS = Partially soluble.