<b>Synthesis of Arylmethylpyridinium Tetrakis(pentafluorophenyl)borates </b><b>and Their Application to Cationic Thermally-Latent </b><b>Curing Agents for Epoxy Resins </b>
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- Kozo mAtsumoto
- Humanity-Oriented Science and Engineering, Kindai University
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- Junya Tamagawa
- Humanity-Oriented Science and Engineering, Kindai University
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- Takeshi Endo
- Molecular Engineering Institute, Kindai University
Bibliographic Information
- Other Title
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- <b>アリールメチルピリジニウムテトラキス(ペンタフルオロフェニル) </b><b>ボラート塩類の合成と </b><b>カチオン型の熱潜在性エポキシ樹脂硬化剤として応用 </b>
- アリールメチルピリジニウムテトラキス(ペンタフルオロフェニル)ボラート塩類の合成とカチオン型の熱潜在性エポキシ樹脂硬化剤として応用
- アリールメチルピリジニウムテトラキス(ペンタフルオロフェニル)ボラート エンルイ ノ ゴウセイ ト カチオンガタ ノ ネツ センザイセイ エポキシ ジュシ コウカザイ ト シテ オウヨウ
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Description
<p>Various arylmethylpyridinium tetrakis(pentafluorophenyl)borates were synthesized and their properties as cationic thermally-latent curing agents for epoxy resins were studied. Arylmethylpyridinium chlorides were prepared by reaction of arylmethylchlorides with cyanopyridines. The desired arylmethylpridinium borates were obtained by the successive ionexchange of these salts with sodium tetrakis(pentafluorophenyl)borate. Catalytic activity of the pyridinium borates toward bisphenol A diglycidyl ether (BAGE) and difunctional alicyclic epoxy resin (Celoxide) were examined by differential scanning calorimetry (DSC). Storage stability of the epoxy resins/salt mixture at room temperature for one month was examined by 1H-NMR measurements. We found that p-methoxybenzyl-3-cyanopyridimium tetrakis(pentafluorophenyl) borate (pMB3CPB) has high curing activity with good storage stability toward epoxy resins. We also found that the cured BAGE possessed higher glass transition temperatures and higher adhesion strength to stainless steel than the resin cured with a conventional sulfonium antimonate.</p>
Journal
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- Journal of Network Polymer,Japan
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Journal of Network Polymer,Japan 38 (4), 166-172, 2017
Japan Thermosetting Plastics Industry Association
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Details 詳細情報について
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- CRID
- 1390001205461487104
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- NII Article ID
- 40021268886
- 130006233750
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- NII Book ID
- AN10521608
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- ISSN
- 2186537X
- 13420577
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- NDL BIB ID
- 028391166
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed