Allylisocyanurates-Radical Polymerization with Vinyl Monomers

Abstract

The radical copolymerization of , '-bisand N,N', N,,-tris(2-hydroxy-3-allyloxypropyl) isocyanurates (DHAIC and THAIC) with methyl methacrylate (MMA) and styrene (S) was studied and the rate constants were evaluated. Increase in the functionality of allylisocyanuric monomers was accompanied by growth of the rate constants for S and MMA. MMA copolymerizes with DHAIC and THAIC at a substantially higher rate than with S. The maximum completeness of copolymerization of S decreased at higher concentrations of THAIC in the initial mixture, while that of MMA passed through a maximum.

Oligoestermaleinates containing isocyanuric rings

“…The isocyanuric oligoestermaleinates. compounds (11) and (III), are compatible with dian epoxide resins, alkyd resins, polyvinyl chloride, arid others.…”

“…The acid oligoesters on the base of compound (11) are light lemon in color, and those on a base of compound (111) are light brown in color.…”

“…In another series of experiments was studied the possibility of obtaining oligoestermaleinates with a low acid number from mixtures of compound (11) or compound (111) and maleic anhydride, or maleic and phthalic anhydrides, or maleic anhydride with oleic acid, or maleic anhydride with stearic acid.…”

“…Hydroquinone is added, to prevent polymerization. The results are The oligoestermaleinates on a base of compound (11) are soluble also in alcohols (ethanol, butanol, ally1 alcohol, and others), and the products esterified with oleic acid and stearic acid are soluble in styrene and aromatic hydrocarbons. The others are partially soluble in, styrene.…”

“…From it and epoxide resins, ally1 esters, and copolycondensates with formaldehyde, urea, phenol, dian, and other substances suit-able for the production of polymeric materials (lacquers, glass plastics, molding powder, etc. ), were synthesized oligomers with triazine and isocyanuric rings, and they showed good thermostability and fire resistance and good dielectric and physical-chemical indices (2)(3)(4)(5)(6)(7)(8)(9)(10)(11).…”