イケハラ タカユキ   Ikehara Takayuki
  池原 飛之
   所属   神奈川大学  工学部 物質生命化学科
    神奈川大学大学院  工学研究科 工学専攻(応用化学領域)
   職種   教授
言語種別 日本語
発行・発表の年月 2004/08
形態種別 学術雑誌
査読 査読あり
標題 Nonisothermal crystallization kinetics of poly(butylene succinate) and poly(ethylene succinate)
執筆形態 共著
掲載誌名 Polymer Journal
巻・号・頁 36(8),642-646頁
著者・共著者 Qiu, Zhaobin; Fujinami, So; Komura, Motonori; Nakajima, Ken; Ikehara, Takayuki; Nishi, Toshio
概要 Nonisothermal melt crystn. kinetics of two biodegradable polyesters, namely poly(butylene succinate) (PBSU) and poly(ethylene succinate) (PES), was studied with DSC for the first time. It was found that the Avrami equation modified by Jeziorny could describe the nonisothermal crystn. process of both PBSU and PES. With increasing the cooling rate, the crystn. rate of both PBSU and PES increased. Meanwhile, the Avrami exponent, na, decreased with the increase of the cooling rate for both PBSU and PES. For PBSU the value of Na decreased from 6.46 to 4.1 when the cooling rate increased form 1 to 10 K/min. For PES the value of Na decreased from 6.46 to 2.88 when the cooling rate increased from 1 to 5 K/min. The above results indicated that the cooling rate had a more apparent influence on the nonisothermal crystn. behavior of PES than that of PBSU. The Ozawa equation was also employed to study the nonisothermal crystn. process of PBSU and PES. The Ozawa method failed to describe the nonisothermal crystn. kinetics of PBSU from the melt, while it could describe that of PES well. The failure of the application of the Ozawa method to the nonisothermal crystn. process of PBSU may be related to the secondary crystn.