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| Type |
Poster Presentation |
| Area |
Polymer Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
POLY.P-25 |
| Subject |
Synthesis and Properties of Piperidinium and Pyrrolidinium PEG copolyesters |
| Authors |
Hyun Ho Chae, Minjae Lee*
Department of Chemistry, Kunsan National University, Korea
|
| Abstract |
A series of polyesters containing piperidinium or pyrrolidinium cations with PF6 or Tf2N counter-anions and poly(ethylene glycol) (PEG-400, 1000 or 4000) units on a backbone are successfully synthesized from dihydroxyl piperidinium/pyrrolidinium room temperature ionic liquid monomers. After using equimolar ratio of dihydroxyl ionic liquid monomers and PEG for polyesterifications, 1:1:2 ratio of the cation units, PEG segments and sebacate units in the copolyesters is confirmed by 1H NMR. Differential scanning calorimetry measurements reveals that ionic polyesters with higher molecular weight PEG and with longer alkylene moeities result in crystallization during either a heating or cooling scan. Thermal stabilities of the synthesized copolyesters are confirmed by TGA and the synthesized ionic copolyesters are mostly stable up to 300 ℃. |
| E-mail |
gusgheld@naver.com |
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123rd General Meeting of the KCS