S. Rajadurai

Use of [13C]-NMR spectroscopy for the estimation of composition of ethyl acrylate/n-butyl methacrylate copolymers

Abstract Copolymers of ethyl acrylate (M 1 ) and n-butyl methacrylate (M 2 ) were prepared by benzoyl peroxide initiation in solution at 60° and copolymer compositions estimated by [ 13 C]-NMR spectroscopy. The kinetic behaviour is approximately ideal with r 1 = 1/ r 2 = 0.47. Relaxation times T 1 were determined for six of the carbons in M 2 units and one in the M 1 units; they range from 0.07 to 1.65 sec.

Synthesis of Casein-g-Poly(n-butyl Methacrylate)

Abstract The graft copolymerization of n-butyl methacrylate onto casein initiated by peroxydisulfate in aqueous medium has been investigated and the results are discussed in the light of percent grafting, grafting efficiency, rates of conversion of monomer, and graft copolymerization.

Polymeric surface coatings for use as leather finishes—Part I. Studies on synthesis and characterisation of urethane acrylate oligomers

Synthesis and characterisation bynmr spectroscopy of oligomers derived from 2-hydroxy ethyl acrylate (hea) and 2-hydroxy propyl methacrylate (hpma) and 1,6-bexamethylene diisocyanate (hdi) are briefly discussed.

Tensile properties of blends of copolymers of n-butyl methacrylate with ethyl acrylate and chlorinated rubber

Solution blending of n-butyl methacrylate-ethyl acrylate copolymers with chlorinated rubber was investigated. The tensile properties of the blends were studied; it was concluded that the blends serve as good film forming materials.