Hydrogen-bond-assisted isotactic-specific radical polymerization of N-isopropylacrylamide with pyridine N-oxide
Hydrogen-bond-assisted isotactic-specific radical polymerization of N-isopropylacrylamide with pyridine N-oxide
复制标题
N-异丙基丙烯酰胺与N-氧化物吡啶的氢键辅助全同立构自由基聚合
DOI:
10.1016/j.polymer.2005.09.025
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发表时间:
2005
期刊:
影响因子:
4.6
通讯作者:
Tsuneyuki Sato
中科院分区:
文献类型:
--
作者:
Tomohiro Hirano;H. Ishizu;M. Seno;Tsuneyuki Sato
Radical polymerization of N-isopropylacrylamide (NIPAAm) in CHCl3at low temperatures in the presence of pyridine N-oxide (PNO) was investigated. An isotactic poly(NIPAAm) with meso diad content of 61% was successfully prepared at −60°C in the presence of a two-fold amount of PNO. Thermodynamic analysis suggested that the isotactic-specificity was entropically induced, probably due to conformational fixation near the propagating chain-end through coordination by PNO.
影响因子:
1.6
作者:
Mana Ito;Takashi Ishizone
通讯作者:
Mana Ito;Takashi Ishizone