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Nature Publishing Group発行の学術雑誌 Polymer Journal
2022年3月号 Front Coverに選ばれました。
Client
名古屋工業大学
大学院工学研究科
信川省吾先生
大学院工学研究科
信川省吾先生
Journal
Polymer Journal
March 2022, Volume 54 Number3 Link
March 2022, Volume 54 Number3 Link
Photoinduced plasticizing effect of the addition of azobenzene on the glass transition temperature and mechanical properties of polycarbonate
Mai Maeda, Shogo Nobukawa & Katsuhiro Inomata
Photoisomerization of doped azobenzene (AB) caused “photoinduced plasticization” effects such as reductions in the glass transition temperature (Tg) and Young’s modulus of the matrix polymer. The mechanism of the reduction in Tg and Young’s modulus of polycarbonate (PC) was investigated by comparing the two values with the characteristic times of the isomerization reactions. The sum of the characteristic times of trans→cis and cis→trans conversion is related to the repeating isomerization rate. The faster repeating isomerization enhanced the free volume of PC, resulting in the reduction in Tg and Young’s modulus.
Link
Mai Maeda, Shogo Nobukawa & Katsuhiro Inomata
Photoisomerization of doped azobenzene (AB) caused “photoinduced plasticization” effects such as reductions in the glass transition temperature (Tg) and Young’s modulus of the matrix polymer. The mechanism of the reduction in Tg and Young’s modulus of polycarbonate (PC) was investigated by comparing the two values with the characteristic times of the isomerization reactions. The sum of the characteristic times of trans→cis and cis→trans conversion is related to the repeating isomerization rate. The faster repeating isomerization enhanced the free volume of PC, resulting in the reduction in Tg and Young’s modulus.
Link
