| Project/Area Number |
01850189
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Research Field |
有機工業化学
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| Research Institution | Osaka University |
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Principal Investigator |
MATSUDA Haruo Osaka Univ., Fac. of Eng., Professor, 工学部, 教授 (20028963)
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| Co-Investigator(Kenkyū-buntansha) |
NOMURA Ryouki Osaka Univ., Fac. of Eng., Assistant, 工学部, 助手 (00156233)
IWAMOTO Kenichi Nippon Paint Co. Research Center, Manager, 研究員課長
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| Project Period (FY) |
1989 – 1990
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| Project Status |
Completed (Fiscal Year 1990)
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| Budget Amount *help |
¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 1990: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1989: ¥2,400,000 (Direct Cost: ¥2,400,000)
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| Keywords | Epoxy Resin / Thermal Resistance Resin / Stereospecific addition / Oxazolidinone / Organoantimony lodide / Organotin Iodide / イミノジオキソラン / マスクドイソシアナ-ト |
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| Research Abstract |
This project aims the development of a new type of thermal resistance epoxy resin reforming by introduction of oxazolidinone ring. The selective formation of oxazolidinones from oxiranes and isocyanates, for this aim, is the most basic and important subject. So, we investigated on the effective catalyst for this cycloaffition.
Following results are some advantages in this research.
(1) Ph_4Sbl-Me_2Snl_2 and Ph_4Sbl-ZnCl_2 systems are the most effective catalysts, and in this catalyst systems little by-products such as iminodioxolanes and isocyanate-trimer were ditected.
(2) The formation path of oxazolidinone was examined, and it was found that stereospecific cycloaddition of iminodioxolanes and oxiranes proceeded in the presence of catalytic amounts of AlCl_3.
(3) The method mentioned above can produce the new types of oxazolidinones which have not obtained by the direct cycloaddition of oxiranes with isocyanates.
(4) The epoxy resins produced by this catalysts have higher softening points (160 - 190 C) than conventional ones.
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