SYNOPSISPolyethylene was reacted with maleic anhydride and N-phenylmaleimide in solution. The effect of modification on its physico-chemical properties, such as mechanical, oxygen gas transmission, water vapor transmission, and grease resistance properties, was studied.

SynopsisPolythiourethane polymers were synthesized from a few glycol polythioglycolates and TDI or MDL Castor oil tristhioglycolate, a new trithiol, was tried as a crosslinking agent. Mechanical and solvent resistance properties of the cured products are reported.

SynopsisCastor oil tris(thioglycolate), a new trithiol, was synthesized from castor oil and thioglycolic acid. This thiol, which showed an inherent propensity to form a solid, insoluble film on exposure to air, was cured with lead peroxide and p-quinone dioxime, using various fillers. Mechanical properties of the cured products as well as their solvent resistance were determined.

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