TY - JOUR
T1 - Living Anionic Polymerization of 4-(1-Adamantyl)-α-Methylstyrene
AU - Kobayashi, Shingo
AU - Kataoka, Hiroshi
AU - Goseki, Raita
AU - Ishizone, Takashi
N1 - Funding Information:
This work was supported by Grant-in Aid (No. 17K19149) from the Ministry of Education, Science, Sports, and Culture, Japan. T.I. appreciates the financial support from JX corporation and Kuraray Co., Ltd.
Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/1/5
Y1 - 2018/1/5
N2 - Anionic polymerization of a novel α-methylstyrene derivative para-substituted with a bulky and rigid adamantyl group, 4-(1-adamantyl)-α-methylstyrene (AdαMS) is carried out with sec-butyllithium (sec-BuLi) in tetrahydrofuran (THF) at −78 °C. The polymerizations of AdαMS quantitatively proceed to afford the polymers possessing controlled molecular weights and narrow molecular weight distributions (Mw/Mn = 1.03–1.16). The propagating carbanion of poly(AdαMS) is stable and undergoes depolymerization at room temperature due to the low ceiling temperature. The resulting poly(AdαMS) has a significantly high glass transition temperature (Tg) at 274 °C. The Tg values of random copolymers of AdαMS and α-methylstyrene can be controlled by changing the feed molar ratio of the comonomers from 167 to 274 °C.
AB - Anionic polymerization of a novel α-methylstyrene derivative para-substituted with a bulky and rigid adamantyl group, 4-(1-adamantyl)-α-methylstyrene (AdαMS) is carried out with sec-butyllithium (sec-BuLi) in tetrahydrofuran (THF) at −78 °C. The polymerizations of AdαMS quantitatively proceed to afford the polymers possessing controlled molecular weights and narrow molecular weight distributions (Mw/Mn = 1.03–1.16). The propagating carbanion of poly(AdαMS) is stable and undergoes depolymerization at room temperature due to the low ceiling temperature. The resulting poly(AdαMS) has a significantly high glass transition temperature (Tg) at 274 °C. The Tg values of random copolymers of AdαMS and α-methylstyrene can be controlled by changing the feed molar ratio of the comonomers from 167 to 274 °C.
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U2 - 10.1002/macp.201700450
DO - 10.1002/macp.201700450
M3 - Article
AN - SCOPUS:85040165842
SN - 1022-1352
VL - 219
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
IS - 1
M1 - 1700450
ER -