高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
特集:高圧力が拓く流体の分子描像
合成高分子の高圧高温NMR観測:亜臨界流体中の高い分子運動性を利用した高分解能測定
平野 朋広吉田 健押村 美幸右手 浩一
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2018 年 28 巻 2 号 p. 95-101

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The solution-state NMR measurement of a synthetic polymer in sub-critical fluids has been accomplished by taking advantage of the specially-designed high-pressure and high-temperature NMR probe. The purpose here is to overcome the signal broadening typically occurring in conventional solution-state NMR due to the slow dynamics of polymers at room temperature. A remarkable sharpening of the 1H NMR signal was observed for poly (N-vinyl-2-pyrrolidone) dissolved in D2O at 250°C. This result has encouraged us to apply high-temperature NMR methods to polymers, such as copolymers, whose spectra were too complicated to be deconvoluted by means of conventional procedures.

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© 2018 日本高圧力学会
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