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In this study we achieved an efficient metal-catalyzed radical “miniemulsion” polymerization with ferrocene (FeCp2) as a cocatalyst in conjunction with a thermoresponsive PEG containing ruthenium catalyst for the polymerization of methacrylate monomers. The iron-cocatalysis worked well even in the miniemulsion similar to homogeneous solution system. The secondary catalytic cycle by ferrocene allows...
In this work, our purpose was directed to syntheses of unique polystyrene (PSt) periodically carrying complementary hydrogen-bonded interaction sites in the chain. First, a bifunctional (bi-headed) initiator carrying three-point complementary hydrogen bonding sites (Cl–DAD–Cl: D=hydrogen donor; A=hydrogen acceptor) was employed for ruthenium-catalyzed living radical polymerization of styrene. Precise...
Small-angle X-ray scattering has done to explore the difference in the strength of the thermal fluctuation effects between A–B diblock copolymer and (A/2) 2 –B Y-shaped copolymer. SAXS profiles for both systems in their disordered states were analyzed with the Brazovskii-type non-mean field theory by Fredrickson and Helfand. The analyses yielded Ginzburg number characterizing the strength...
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