| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
It is believed and demonstrated that vinyl ethers cannot be inherently homopolymerized via the (controlled) radical mechanism. Thus, novel controlled radical polymerization of vinyl ether was conducted in reaction field with hydrogen bond. Firstly, effects of alkaline water and comonomers on the free radical polymerization using 2-hydroxyethyl vinyl ether (HEVE) were investigated . The free radical polymerization of HEVE at 40-60 wt% in water (pH >7) proceeded with complete monomer conversion. The copolymerizations of HEVE with other vinyl ethers also proceeded smoothly. In each case, the primary key to success in the copolymerization is proper hydrogen bonding between the vinyl ether oxygen and hydroxyl group in the pendant or non-acidic water as a solvent. Using the resulting copolymers, we demonstrated the free radical polymerization of vinyl ether without hydroxy groups in water with LiOH.
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