Copolymers of dimethyl 2-methyl-1,3-butadienethiophosphonate with 1,1,2-TRICHLORO-1,3-BUTADIENE (cas 2852-07-5) or ethyl α-cyanoacrylate

Add time:07/12/2019    Source:sciencedirect.com

Dimethyl 2-methyl-1,3-butadienethiophosphonate was copolymerized radically with 1,1,2-TRICHLORO-1,3-BUTADIENE (cas 2852-07-5) or with ethyl α-cyanoacrylate. IR and NMR spectra (1H and 31P) give evidence that polymerization of the phosphorus-containing monomer and, when it is present in excess, also its copolymerization proceeds largely as 3,4 polyaddition. Copolymers containing both phosphorus and chlorine exhibit a decreased flammability: the oxygen index varies between 21 and 45. Elastic films of high mechanical strength can be prepared by casting from solutions of the copolymers in chlorinated or aromatic hydrocarbons.

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