• Title/Summary/Keyword: vinylbenzoic

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Electrochemical Characteristics at Copolymeric film Electrodes of [Ru(v-bpy)$_3$]$^{2+}$ and Vinylbenzoic Acid Modified with Dopamine (Dopamine으로 수식된 [Ru(v-bpy)$_3$$^{2+}$와 Vinylbenzoic Acid의 공중합 피막 전극의 전기화학 특성)

  • 차성극;박유철;임태곤
    • Polymer(Korea)
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    • v.25 no.6
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    • pp.782-788
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    • 2001
  • The $[Ru(v-bpy)_3]^{2+}$ and vinylbenzoic acid (vba) were electrochemically copolymerized to afford electrodes modified with dopamine to study their properties such as electropolymerization rate, redox process, and electron transfer. The optimum mole ratio of the monomers was 5:2, which gave $1.84{ imes}10^{-2}s^{-1}$ of rate constant for first order reaction, while the ratio of the substances on the copolymeric film produced was 5:1.68. The formal potential produced from the hydroquinone=quinone+$2H^+2e^-$reaction at the electrode of GC/p- $[Ru(v-bpy)_3]^{2+}$/vba-dopamine was 0.17 V in phosphate buffer (pH=7.10). The electrocatalytic rate was $2.58{ imes}10^5cms^{-1}$;2.41 times faster than that of non-modified one. The mass change measured by EQCM was $3.28{ imes}10^3$$gmol^{-1}$ which is larger than that of non-modified one.

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Controlled synthesis of reactive polymeric architectures for stimuli-responsive materials

  • Theato, Patrick;Nilles, Katja;Metz, Nadine
    • Proceedings of the Polymer Society of Korea Conference
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    • 2006.10a
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    • pp.329-329
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    • 2006
  • Various new active ester monomers based on (meth)acrylates and 4-vinylbenzoic acid have been prepared. Investigation of the controlled radical polymerization behavior of the respective monomers resulted in excellent polymerization control, thus, opening synthetic routes to reactive block copolymers. Polymer analogous reactions with amines yielded functional polymers. In the case of the copolymer poly(N-isopropylacrylamide-co-acetone oxime acrylate) a lower critical solution temperature could be measured at $52^{\circ}C$. Thus, the reactive copolymer features two characters: reactive AND stimuliresponsive behavior.

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