Specific features of radical copolymerization of methyl methacrylate and n-butyl acrylate in the presence of the tributylborane–p-quinone system

Ludin, D. V.; Kuznetsova, Yu. L.; Зайцев, С. Д.

doi:10.1134/s1560090417050086

Cited by 5 publications

(3 citation statements)

References 37 publications

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“…On the other hand, the probability of formation of a 'dead' polymer during (meth)acrylate polymerization also increases. 51,57 Hence, an important stage of the study is optimization of the polymerization conditions in order to obtain a block copolymer with blocks of equal length. This should allow a marked combination of the properties of copolymer components in the material obtained.…”

Section: Bu Tmentioning

confidence: 99%

“…55 Using this approach, copolymers with well-defined molecular weight and chain microstructure were synthesized. [56][57][58] Further, trialkylborane/p-quinone systems were successfully used for graft copolymerization onto starch. 59 Polymers obtained in the presence of trialkylborane/p-quinone systems are characterized by increased thermal stability and isotacticity.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, polystyrene (PS) macroradicals can be involved exclusively in direction 1 55 . Using this approach, copolymers with well‐defined molecular weight and chain microstructure were synthesized 56–58 . Further, trialkylborane/ p ‐quinone systems were successfully used for graft copolymerization onto starch 59 .…”

Section: Introductionmentioning

confidence: 99%

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New method for controlled synthesis of polylactide block copolymers: organoborane/p‐quinone system and reversible‐deactivation radical polymerization

Ludin

Зайцев

Маркин

et al. 2021

Polymer International

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We developed a new approach to obtain polylactide hybrid block copolymers with vinyl monomers (styrene, methyl methacrylate, methyl acrylate) through the realization of a reaction sequence using triethylborane and various p-quinones. The method offered includes two stages. In the first stage, a chain-transfer agent was obtained by borylation of the terminal hydroxyl groups of polylactide. The second stage was vinyl monomer radical polymerization in the presence of p-quinone accompanied by S H 2-substitution at the boron atom.1,4-Naphthoquinone, 2,3-dimethyl-1,4-benzoquinone, duroquinone and 2,5-di-tert-butyl-1,4-benzoquinone were used as synthetic polymer chain growth mediators. It is shown that 1,4-naphthoquinone and 2,3-dimethyl-1,4-benzoquinone, similar in their characteristics, are effective agents providing the realization of reversibledeactivation radical polymerization. Realization of reversible-deactivation radical polymerization was proved with the analysis of the kinetics of block copolymerization, molecular weight characteristics and compositional homogeneity of block copolymers as well as its further capability to elongate the polymer chain. Synthesized block copolymers have a high thermal stability compared to the initial borylated polylactide.

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Section: Bu Tmentioning

confidence: 99%