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ID 116833
著者
Yuki, Takumi Tokushima University
Kizu, Ryotaro Tokushima University
Kamiike, Ryota Tokushima University|Nippon A&L
キーワード
trans-4-Methoxy-β-methylstyrene (trans-anethole)
Cationic polymerization
Solvate ionic liquid
資料タイプ
学術雑誌論文
抄録
Cationic homopolymerization of a biomass-derived monomer, trans-4-methoxy-β-methylstyrene (trans-anethole: Ane), was achieved with a combination of bis(trifluoromethylsulfonyl)imide and solvate ionic liquid comprising lithium bis(trifluoromethylsulfonyl)imide and a Lewis base, such as ethyl acetate and diisopropyl ether (iPr2O). The number-average molecular weight (Mn) of the obtained poly(Ane) reached 15.6 × 103 by adding iPr2O in toluene at –10 °C. The solubility of poly(Ane) varied drastically with a change of solvent: the polymers obtained in CH2Cl2 were not completely soluble in common organic solvents such as toluene, chloroform, and tetrahydrofuran, except for 1,1,2,2,-tetrachloroethane (C2H2Cl4) at 140 °C, whereas the polymers obtained in toluene were soluble in these solvents. The 1H NMR spectrum measured in C2D2Cl4 at 140 °C revealed that the stereostructure of poly(Ane) depended significantly on the solvent and the temperature: a polymer with a more regulated stereostructure was obtained from polymerization in CH2Cl2 at –40 °C than those obtained by polymerization in toluene at –10 °C.
掲載誌名
Polymer
ISSN
00323861
cat書誌ID
AA11537383
出版者
Elsevier
246
開始ページ
124780
発行日
2022-03-22
権利情報
© 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
著者版
部局
理工学系