Kinetic features and molecular-weight characteristics of terpolymerization products of the systems based on vinyl acetate and 2-tert-butyl-peroxy-2-methyl-5-hexene-3-yne

Abstract

ABSTRACT:Investigations of terpolymerization kinetics of the system on the basis of vinyl acetate (VA), peroxidic monomer (VEP) 2-tert-butyl-peroxy-2-methyl-5-hexene-3-yne, and acrylic acid proved that it falls under the equation of faintly inhibited copolymerization in which VEP serves as a comonomer and a chain-transfer agent. The contribution of each stage to the summary process rate is defined by the monomer ratio and depends on their consumption rate. Combination of a low-active VA monomer and of a VEP faint inhibitor in the system allows the control of the Trommsdorf effect and molecular-weight characteristics of functional oligoperoxides by changing the component ratio. The new carbon chain oligomers containing ditertiary alkyl peroxide and polar functional groups have practical application as multicenter surface-active radical initiators of polymerization and structurization.

Genetic Transformation Systems in Fungi, Volume 1

“…OMC was coordinating Cu 2+ complex of the copolymer composed of vinyl acetate (VA), 5-tertbutylperoxy-5-methyl-1-hexene-3-yne (VEP), and maleic anhydride (MA). Both the initial oligoperoxide and OMC derivate have been synthesized, as described (Zaichenko et al 1997(Zaichenko et al , 2000(Zaichenko et al , 2001. Principal characteristics of the resulting BG-2 oligoelectrolyte carrier are presented in Table 20.1 .…”

Target Synthesis of Functional Biocompatible Nanocomposites with “Core-Shell” Structure

“…Surface-active monomer triethyl ammonium 3[(Z)-4-cetyloxy-4-oxy-2-butenoiloxy]-1-propylsulfonate (SAM) and peroxide containing monomer 2-tert-butylperoxy-2-methyl-5-hexen-3-yne (VEP) were synthesized according to techniques described earlier [69] and [70] Surface-active oligoperoxide metal complex initiator (OMC), whose general structure is shown below, was synthesized according to techniques described earlier [72]. Functional oligoperoxides (FO) that were used as ligands for OMC obtaining, were synthesized according to technique described earlier [73]. FO were obtained by copolymerization of VA, VEP, and MA (molar ratio -22.8:32.2:45.0) at 333 K in ethyl acetate, 2,2′-azobis (2-methylpropionitrile) (AIBN) was used as initiator.…”

Kinetics of the formation and structure of oligoperoxide nanolayers and grafted polymer brushes on glass plate surface

“…Carbon chain FOP derived from vinyl acetate (VA), maleic anhydride (MA), 2-tertbutylperoxy-2-methyl-5-hexene-3-yne (VEP) were obtained by solution copolymerization at 333K in ethyl acetate using azobisisobutyronitrile (AIBN) as initiator [10]. VA was purified by vacuum distillation and their characteristics coincided with literature data [11].…”