Synthesis and Properties of New Organosoluble Alkoxylated Naphthalene-Based Novolacs Preparaed by Addition-Condensation of Mono- or Di-alkoxynaphthalene with Formaldehyde
Synthesis and Properties of New Organosoluble Alkoxylated Naphthalene-Based Novolacs Preparaed by Addition-Condensation of Mono- or Di-alkoxynaphthalene with Formaldehyde
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单烷氧基萘和二烷氧基萘与甲醛加成缩合制备新型有机可溶性烷氧基萘基酚醛清漆的合成及性能
DOI:
10.1295/polymj.pj2008035
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发表时间:
2008
期刊:
影响因子:
2.8
通讯作者:
G. Konishi
中科院分区:
文献类型:
--
作者:
T. Nemoto;G. Konishi
The preparation of new alkoxylated naphthalene-based novolacs [poly(naphthylenemethylene)s] by acid-catalyzed addition-condensation of mono- or di-methoxynaphthalene with formaldehyde is described in this paper. The polymerization of 2-methoxynaphthelene (1) with an equimolar amount of formaldehyde proceeded homogeneously to give the polymer 2 (M n 3100, M w /M n 1.7) in good yield. The FT-IR, 1 H NMR and 13 C NMR spectra suggest that 2 might have a naphthylene-methylene unit and approximately linear polymer backbones. In contrast, in the case of 1,5-dimethoxynaphthalene (3a) as a monomer, the obtained polymer (4a) (M n 1900, M w /M n 2.3) was a branched polymer. From TGA, T 10 (temperature at 10% loss in weight) indexes of the polymers 2 and 4a were estimated to be 402 and 359 °C, respectively. These results indicate that the alkoxylated naphthalene-based novolacs have good thermal stability.
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影响因子:
2.8
作者:
Tsuyoshi Kimura;Y. Nakamoto;G. Konishi
通讯作者:
Tsuyoshi Kimura;Y. Nakamoto;G. Konishi
DOI:
--
发表时间:
2006
期刊:
Polym.J. 38・9
影响因子:
--
作者:
Tsuchiya;K.;Ueda;M.
通讯作者:
M.
DOI:
--
发表时间:
2006
期刊:
Polymer Journal 38
影响因子:
--
作者:
Yosuke Tsutsui;Naoko Numao;Masato Suzuki
通讯作者:
Masato Suzuki
DOI:
--
发表时间:
2006
期刊:
Macromol. Res. 14
影响因子:
--
作者:
D.-M.Shin;N.Ozeki;Y.Nakamoto;G.Konishi
通讯作者:
G.Konishi