Shinji Takaku

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Syndiotactic poly(N-n-propylacrylamide)s (PNNPAM) with various racemo (r) diad contents were synthesized, and their phase transition behaviors were studied by high-sensitivity differential scanning calorimetry and FT-IR spectroscopy. The cooperativity of the phase transition increased with the increase in the r diad content. Compared with the atactic(More)
The temperature responsiveness of poly(N-tetrahydrofurfurylacrylamide) (PTHFA, phase transition temperature, T(p) = 38 °C) and poly(N-tetrahydrofurfurylmethacrylamide) (PTHFMA, T(p) = 43 °C) in water and alcohol-water mixtures was investigated by infrared and Raman spectroscopy. Their T(p) increased monotonically with increasing concentration of added(More)
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