2003
DOI: 10.1023/a:1024746600061
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(2 citation statements)
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“…Free radical polymerization (FRP) initiated via 60 Co γ-irradiation is attractive for grafting monomer onto polymer backbones, polymerization of composites, cross-linking polymer chains, and synthesizing copolymers as well as modifying polymer properties because a constant ionizing energy source supplies a constant radical species concentration. Additionally, γ-radiation affords an environmentally friendly alternative to thermally initiated polymerizations as this process occurs at ambient temperatures. Reversible addition fragmentation chain transfer (RAFT) chemistry is used routinely to generate functional and complex molecular architectures, such as block copolymers, core−shell nanoparticles, branched structures, as well as star and graft polymers. Recently, RAFT chemistry has been used in conjunction with γ-initiation for the synthesis of complex polymer systems for the generation of extremely well-defined polymers with respect to polydispersity and molecular weight as well as for the construction of polymer−protein conjugates; however, the exact initiation pathway is unclear.…”
Section: Introductionmentioning
confidence: 99%
“…Free radical polymerization (FRP) initiated via 60 Co γ-irradiation is attractive for grafting monomer onto polymer backbones, polymerization of composites, cross-linking polymer chains, and synthesizing copolymers as well as modifying polymer properties because a constant ionizing energy source supplies a constant radical species concentration. Additionally, γ-radiation affords an environmentally friendly alternative to thermally initiated polymerizations as this process occurs at ambient temperatures. Reversible addition fragmentation chain transfer (RAFT) chemistry is used routinely to generate functional and complex molecular architectures, such as block copolymers, core−shell nanoparticles, branched structures, as well as star and graft polymers. Recently, RAFT chemistry has been used in conjunction with γ-initiation for the synthesis of complex polymer systems for the generation of extremely well-defined polymers with respect to polydispersity and molecular weight as well as for the construction of polymer−protein conjugates; however, the exact initiation pathway is unclear.…”
Section: Introductionmentioning
confidence: 99%
“…В Республике Беларусь организовано производство сополимера АА и АNa последним из перечисленных выше способов [8]. В свою очередь ПЭГГ на основе сополимера можно получить непосредственно при синтезе путем добавления сшивающего агента в реакционную смесь или при воздействии ионизирующего излучения на полимерные водные растворы [9,10], а также посредством добавления персульфата аммония или калия к водному раствору сополимера АА и АNa при высоких температурах, причем в последнем случае сшивание сополимера инициируется радикалами, образующимися при термическом разложении указанных выше персульфатов [11]. Во всех перечисленных способах имеет место радикальный механизм формирования сетчатой структуры макромолекул.…”
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