Polymer(Korea) (폴리머)

The Polymer Society of Korea (한국고분자학회)
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Preparation and Properties of Poly(dimethylsiloxane-co-N-phenylsiloxazane) Modified Acrylate Resin

Poly(dimethylsiloxane-co-N-phenylsiloxazane) 변성 Acrylate Resin의 제조와 그 특성

  • Kang, Doo-Whan (Department of Polymer Science & Engineering, College of Engineering, Dankook University) ;
  • Kum, Min-Woo (Department of Polymer Science & Engineering, College of Engineering, Dankook University) ;
  • Yoon, Jae-Seon (Department of Polymer Science & Engineering, College of Engineering, Dankook University)
  • 강두환 (단국대학교 공과대학 고분자시스템공학과) ;
  • 금민우 (단국대학교 공과대학 고분자시스템공학과) ;
  • 윤재선 (단국대학교 공과대학 고분자시스템공학과)
  • Received : 2009.11.13
  • Accepted : 2010.01.07
  • Published : 2010.03.25
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Abstract

We first synthesized N-phenylcyclotrisiloxazane ($D_3^{NPh}$) through a cyclization of $\alpha$,$\omega$- dichlorohexamethyltrisiloxane with aniline and prepared poly(dimethylsiloxane-co-N-phenylsiloxazane) copolymer (PDMS-NPSOX) by a ring opening copolymerization of them with hexamethylcyclotrisiloxane $D_3$. An acrylate monomer modified with PDMS-NPSOX was synthesized by using chloroethyl methacrylate and copolymerized with methylmethacrylate (MMA) and n-butylacrylate. The composition of the copolymer was chosen to control their glass transition temperature ($T_g$) to 25 $^{\circ}C$. By changing the comonomer from PDMS to PDMS-NPSOX, $T_g$ and adhesive strength of the copolymer were increased from 20 to 25 $^{\circ}C$ and from 1.76 to 2.23 N/cm, respectively.

$\alpha$,$\omega$-Dichlorohexamethyltrisiloxane의 aniline과 고리 반응으로부터 N-phenylcyclotrisiloxazane($D_3^{NPh}$)을 합성하고 이를 hexamethylcyclotrisiloxane$D_3$과 이온 공중합시켜 poly(dimethylsiloxane-co-N-phenylsiloxazane)공중합체(PDMS-NPSOX)를 제조하였다. 이를 chloroethyl methacryalte에 도입하여 PDMS-NPSOX unit가 도입된 아크릴 단량체를 제조하였으며, 이를 MMA 및 n-butyl acrylate와 공중합시켜 PDMS-NPSOX가 도입된 삼원 아크릴 공중합체를 제조하고, 그 특성을 조사하였다. 단량체 조성은 생성 공중합체의 $T_g$가 25 $^{\circ}C$가 되도록 선택하여 공중합시켰다. 공중합체에서 PDMS만 도입된 경우 $T_g$가 20 $^{\circ}C$인데 비하여 PDMS-NPSOX unit이 도입됨에 따라 25 $^{\circ}C$로 증가되었으며 접착력도 1.76 N/cm에서 2.23 N/cm로 증가되었다.

Keywords

References

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