Controlled radical polymerization of styrene in the presence of molecular iodine

Molecular iodine in monomer and polymer designing

“…Shiman et al [100] applied RITP strategy to the polymerization of styrene in toluene using AIBN and BPO as radical inifers. An inhibition period of 2-3 h was observed in the course of the polymerization of styrene in the AIBN/I 2 system.…”

“…The molecular weight of PMMA and its PDI was influenced by the nature of the surfactant used. They were measured for a conversion higher than 90% as 118,000 (PDI = 2.12), 100 Polymerization of styrene in emulsion was also conducted by means of RITP technique using potassium persulfate (KPS) as initiator and 1-hexadecanesulfonate as emulsifier under argon atmosphere at 80°C for 7 h in the absence of light. [103] The polymerization rate dropped as iodine concentration increased.…”

Reverse iodine transfer polymerization (RITP) of chloroprene

“…Once all molecular iodine is consumed, the polymerization period takes place (Scheme 1). This technique has been successfully used to polymerize styrenic monomers (styrene), [23][24][25] acrylic monomers (methyl acrylate, 22 methyl methacrylate, 26,27 n-butyl acrylate 22,28 .) in homogeneous and heterogeneous polymerizations.…”

A simple route to deuterated polystyrene block copolymers by reverse iodine transfer polymerisation

“…Also, the dispersity values of the h-PS samples were in a typical range for styrene polymerisation via ITP. 7,15,16,[41][42][43] Despite the acceptable dispersity values reported here, dispersities for RITP of styrene can be as low as 1.3. 15,19,44 The molar mass distributions of three h-PS samples (run 3, 5 and 6 Table 1) as obtained by SEC are shown in Fig.…”

“…Regardless of this fact, the dispersity values are between 1.6-1.8, which is typical of styrene polymerised via RITP. 7,15,16,41,43 The molar mass distributions from SEC of three d-PS samples (run 2, 3 and 4 Table 2) are shown in Fig. 2.…”