Synthesis of isotactic poly[α-(hydroxymethyl)acrylate] by anionic polymerization of the protected monomer
Synthesis of isotactic poly[α-(hydroxymethyl)acrylate] by anionic polymerization of the protected monomer
复制标题
受保护单体阴离子聚合合成全同立构聚[α-(羟甲基)丙烯酸酯]
DOI:
10.1007/s00289-016-1813-1
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发表时间:
2017
期刊:
影响因子:
3.2
通讯作者:
Tatsuki Kitayama
中科院分区:
文献类型:
--
作者:
Yasuhiro Kohsaka;Kazuki Yamamoto;Kazuha Suzawa;Tatsuki Kitayama
Isotactic poly[methyl α-(hydroxymethyl)acrylate] was prepared via anionic polymerization of the respective monomer protected with trimethylsilyl group (1-TMS) initiated with isopropyl α-lithioisobutyrate (Li-iPrIB) in toluene at −78 °C. The polymerization proceeded in high isotactic specificity similarly to the case of α-(alkoxymethyl)acrylate, although the monomer conversion was low (~18 %) due to the self-terminating reaction accompanying the elimination of trimethylsilanolate anion. The monomer conversion could be improved to ca. 75 % in the polymerizations with an excess amount of LiOSiMe3, which would interact with and stabilize the propagating species to suppress the self-terminating reaction. This was a sharp contrast to the polymerization of α-(methoxymethoxymethyl)acrylate (1-MOM), an acetal protected monomer, where the addition of LiOSiMe3enhanced the self-termination. Consequently, the structure of protective group affects the polymerization behavior. For the resultingpoly(1-TMS), the deprotection by acid hydrolysis quantitatively afforded isotactic poly[methyl α-(hydroxymethyl)acrylate].
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影响因子:
5.5
作者:
S. Habaue;H. Yamada;Y. Okamoto
通讯作者:
Y. Okamoto
DOI:
10.1002/pola.20991
发表时间:
2005
期刊:
Journal of Polymer Science Part A
影响因子:
--
作者:
T. Y. Chiu;M. Stenzel;T. P. Davis;C. Barner‐Kowollik
通讯作者:
C. Barner‐Kowollik
影响因子:
0.7
作者:
J. Villiéras;M. Villiéras
通讯作者:
M. Villiéras
DOI:
10.1002/pola.27931
发表时间:
2016
期刊:
Journal of Polymer Science Part A
影响因子:
--
作者:
Yasuhiro Kohsaka;Y. Matsumoto;Tianyi Zhang;Y. Matsuhashi;T. Kitayama
通讯作者:
T. Kitayama
DOI:
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发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
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