2014 Fiscal Year Final Research Report
Measurement of Molecular Weight by Shockwave and Developement of Mass-shift Method
| Project/Area Number |
24655063
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Analytical chemistry
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| Research Institution | Kyoto Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | レーザー衝撃波 / 分子量測定 / 分子形状 / 生体高分子 / 会合体 |
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| Outline of Final Research Achievements |
Measurement of molecular weight of polymers from the microscopic distance of movement, which is afforded by the action of laser-induced shockwave, has been studied. The distances afforded to polysaccharides and proteins incresed with the molecular weight in different manners and association like dimerization of molecules showed a shift in the distance corresponding to their molecular weight. A decrease of the distance was observed when proteins were associated with surfactant molecules although the molecular weights were expected to increase. This has been attributed to a change in their molecular shape which was elongated by the association of the surfactant molecules. It has been concluded from these results that molecular shape in solution is an important factor as well as molecular weight determine the distance afforded by the action of shockwave in solution.
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| Free Research Field |
光化学
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