| Project/Area Number |
18H01771
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 27020:Chemical reaction and process system engineering-related
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
Masaki Kubo 東北大学, 工学研究科, 准教授 (50323069)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
小林 大祐 東京電機大学, 工学部, 准教授 (30453541)
安田 啓司 名古屋大学, 工学研究科, 准教授 (80293645)
|
|---|
| Project Period (FY) |
2018-04-01 – 2021-03-31
|
| Project Status |
Completed (Fiscal Year 2020)
|
| Budget Amount *help |
¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
|
|---|
| Keywords | 超音波 / コポリマー / 温度応答性 / 共重合組成 / 分子量分布 / 感温性 |
|---|
| Outline of Final Research Achievements |
In this study, a novel method was developed to control the responsive temperature of poly(NIPAM-co-HEMA) using an ultrasonic polymerization technique. Initially, the behavior of the reaction was investigated using NIPAM and HEMA monomers under ultrasonic irradiation. Furthermore, the effect of the ultrasonic irradiation conditions on the temperature responsiveness of the copolymer was investigated. The lower critical solution temperature (LCST) of the copolymer was found to increase with increasing ultrasonic irradiation time. In addition, the measured values of the LCST in the early stages of the reaction were higher than the estimated values using copolymer composition. These results are of importance to control of the temperature responsiveness of poly(NIPAM-co-HEMA) using ultrasonic irradiation.
|
| Academic Significance and Societal Importance of the Research Achievements |
超音波を用いてコポリマーの分子量、分子量分布、共重合組成を制御することで、生成コポリマーの特性の一つである温度応答性を制御する新規な方法の開発に成功した。これによって、従来はモノマーの仕込みモル比によって制御していた温度応答性を、超音波照射条件によっても制御することを可能とし、コポリマーの温度応答性と機械的強度の設計の幅を広げることが可能になった。
|
