| Project/Area Number |
11450357
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| Research Category |
Grant-in-Aid for Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
高分子合成
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
CHUJO Yoshiki Graduate School of Engineering, KYOTO UNIVERSITY Professor, 工学研究科, 教授 (70144128)
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| Co-Investigator(Kenkyū-buntansha) |
NAKA Kensuke Graduate School of Engineering, KYOTO UNIVERSITY Associate Professor, 工学研究科, 助教授 (70227718)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 2000: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1999: ¥9,100,000 (Direct Cost: ¥9,100,000)
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| Keywords | Aprotic Polar Polymers / Aprotic Polar Solvents / DMAC / DMSD / HMPA / Amphiphilicity / Miscibility / Polymer Reaction |
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| Research Abstract |
N, N-Dimethylacetamide (DMAc), dimethyl sulfoxide (DMSO), and hexamethyl-phosphoric triamide (HMPA) are unique and useful aprotic polar solvents in organic synthesis. In this research project, the polymer homologues of these polar solvents were synthesized.
First, the polymer homologue of DMSO was prepared. Aliphatic polysulfoxides were successfully synthesized from the corresponding aliphatic polysulfides by the oxidation using hydrogen peroxide. The polysulfoxides obtained were used as oxidizing reagents in Swern oxidation. A real polymer homologue of DMSO, poly-(ethylene sulfoxide) was prepared by selective oxidation of poly (ethylene sulfide).
The poly (HMPA) was synthesized by the polymer reaction of linear poly (ethyleneimine) with bis (dimethylamino) phosphoryl chloride in the presence of DBU.The poly (HMPA) obtained showed good miscibility with commodity polymers such as polystyrene. The poly (HMPA) was also prepared by ring-opening polymerization of bis (dimethylamino) phosphorylpropylenimine.
As an example of poly (DMAc), poly (N, N-dimethylcarbamoylmethylene) having amide groups on all main chain carbons was successfully prepared by the polymer reaction of poly (fumaric acid).
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