1992 Fiscal Year Final Research Report Summary
Preparation of Apparatus for Vapor Coating Method
| Project/Area Number |
03555195
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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 |
高分子合成
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| Research Institution | Mie University |
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Principal Investigator |
IWATSUKI Shouji Mie University, Faculty of Engineering, Professor, 工学部, 教授 (80023034)
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| Co-Investigator(Kenkyū-buntansha) |
KUBO Masataka Mie University, Instrumental Analysis Center, Associate Professor, 機器分析センター, 助教授 (70195494)
ITOH Takahito Mie University Faculty of Engineering, Associate Professor, 工学部, 助教授 (90126954)
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| Project Period (FY) |
1991 – 1992
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| Keywords | Vapor Coating / Isomerization / Pyrolysis |
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| Research Abstract |
Dispiro[2.2.2.2]deca-4,9-diene was subjected to vapor phase pyrolysis above 450ﾟC, and the pyrolyzed gas was condensed on a glass surface at 20ﾟC to give poly(1,4-phenylene-1,2-dimethylethylene) as a colorless transparent film in 10-20% yield. The pyrolyzed product of dispiro[2.2.2.2]deca-4,9-diene was absorbed in hexane at -78ﾟC, and the solution was reacted with chlorine at -78ﾟC to yield 1,4-bis(1-chloroethyl) benzene, supporting the diradical intermediate, 2,2'-(1,4-phenylene) diethyl diradical, generated in the vapor phase pyrolysis of dispiro[2.2.2.2]deca-4,9-diene is subject to isomerization to give 7,8-dimethyl-1,4-benzoquinodimethane which, when condensed, polymerized spontaneously to give the film of poly(1,4-phenylene-1,2-dimethylethylene). This result was thought to be the first case for ring-opening and isomerization polymerization of dispiropropane compound.
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