화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2003년 가을 (10/10 ~ 10/11, 부경대학교)
권호 28권 2호, p.319
발표분야 고분자 합성
제목 Synthesis and Characterizations of Poly(oxyethylene)s Containing Alkylthioalkyl or Alkylsulfonylalkyl Side Groups
초록 We have synthesized poly(oxyethylene)s containing alkylthioalkyl or alkylsulfonylalkyl side groups. To study the effect of the position of the sulfone group on the mesomorphic behavior, we intentionally fixed the length of the side group, such as 10 atoms in the side chain skeleton, to eliminate the effect of side chain length on the mesomorpic properties. Poly[(chloromethyl)oxirane], poly[(2-choroethyl)oxirane], poly[(3-chloropropyl)oxirane], and poly[(4-chlorobutyl)oxirane] were prepared, and then the chloro end group in the side chain was substituted by sodium octanethiolate, sodium heptanethilote, sodium hexanethiolate, and sodium pentanethiolate, respectively, to induce poly(oxyethylene)s containing alkylthioalkyl side goups. The thioether containing polymers were oxidized to poly(oxyethylene)s containing alkylsulfonylalkyl side goups. These polymers were characterized using nuclear magnetic resonance spectroscopy, differential scanning calorimetry, polarized optical microscopy, and gel permeation chromatography.
저자 류현수, 이종찬
소속 서울대
키워드 poly(oxyethylene); liquid crystalline
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