radical polymerization

Food safety, which is regarded as a global and expensive health problem, is often threatened with the entry of microorganisms, which reduce their storage time and cause acute illness. Another important global problem is the corrosion of metal and plastic structures, which is caused by various colonies of bacteria. The use of microorganisms that cause the biodegradation of materials is promising for solving the problem of environmental pollution with polymeric materials.

Currently, polymers with special properties are widely used in various areas, including medicine and electronic. However, specific of usage of such materials is determined by their structure. In this case, the development of novel polymeric macromolecules with controlled structure and studying of peculiarities their synthesis is an actual task for today. In this paper surface active block/comb-like copolymers were obtained via free radical polymerization by two-step polymerization.

he heterotelechelic oligomers and block-copolymers with ultimate peroxide, glucose and other functional fragments were synthesized by polymerization, initiated by RedOx system – OH agents and Ce4+ salt in the presence of peroxide chain transfer agent. The structural and colloidal-chemical properties of oligoperoxides were studied.

Functional azoinitiators: 2,2’-azobis(2-methyl-4-hydroxybutyl propionate) (AIB-BD), 2,2’-azobis[2-methyl-ω-hydroxy-tri(oxyethylene) propionate] [AIB-Tri(OE)] and 2,2’-azobis[2-methyl-ω-hydroxy-oligo(oxyethylene) propionate] [AIB-OOE(400)] were used in radical polymerization of 2-ethylhexyl acrylate, methyl acrylate and acrylic acid in organic solvent ethyl acetate to prepare solvent-borne acrylic pressure-sensitive adhesives (PSA).

New methacrylic monomers, their polymers with benzylidene fragment were synthesized. Structures of all compounds were determined by HNMR, UV- spectroscopies. The third order nonlinear optical properties of oxazolone, thiazolidinone and thiohydantoin containing compounds were investigated in solutions using degenerate four wave mixing (DFWM) method at 532 nm.

The polymerization ability of methylmethacrylate (MMA) dymethylforamide (DMF) solutions in the process of their radical thermoinitiated homopolymerization in the presence of intraionic dyes was investigated by a dilatometry method. It was shown that dyes can initiate the polymerization process in the presence of stardart initiator AIBN or without it. This is considerable for colored polymethylmethacrylate (PMMA) obtaining.