| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터) |
| 권호 |
42권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
pH-Tunable Thermoresponsive PEO-based Functional Polymers with Pendant Amine Groups |
| 초록 |
Thermoresponsive polymers exhibiting lower critical solution temperatures (LCSTs) in aqueous solution have garnered considerable attention for the development of smart materials. Herein, we report the synthesis and properties of pH-tunable thermoresponsive poly(ethylene oxide) (PEO)-based functional polymers bearing pendant amine groups with varying cloud points. Poly(ethylene oxide-co-allyl glycidyl ether) (P(EO-co-AGE)) copolymers were prepared via controlled anionic ring-opening copolymerization of ethylene oxide (EO) with 10 mol% of allyl glycidyl ether (AGE) comonomer. Facile, modular thiol-ene click chemistry was then employed to introduce a library of different aminothiols as side chains to the initial P(EO-co-AGE) copolymer. Depending on the nature of the pendant amine groups (primary amine, dimethylamine, and diethylamine) and the hydrophobicity of the side chains (ethyl, propyl, and hexyl), the cloud points could be tuned from 44-100 °C under different pH conditions. |
| 저자 |
이준희1, Alaina J. McGrath2, Craig J. Hawker3, 김병수2
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| 소속 |
1UNIST, 2Univ. of California, 3Santa Barbara |
| 키워드 |
LCST; Thermoresponsive polymer; Poly(ethylene oxide); Anionic ring-opening polymerization
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| E-Mail |
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