Effects of water temperature on degradation of several biodegradable polymers immersed in water

N. Hirai*, T. Tanaka, Y. Ohki, Y. Tajitsu, M. Kohtoh, S. Okabe

*この研究の対応する著者

研究成果: Paper査読

6 被引用数 (Scopus)

抄録

Four kinds of biodegradable polymers were immersed in water around 301 K and 351 K for fixed periods from 1 to 720 hours, and their degradation was studied by observing their shapes, weights, molecular weights, and space charge distributions. Samples tested were poly-L-lactic acid (PLLA), polycaprolactone butylene succinate (PCL-BS), polyethylene terephthalate succinate (PETS), and polybutylene succinate (PBS). From space charge observation, it is assumed that water accelerates ionization of substances and extraction of ionizable species. The durability against water becomes much worse when the water is 351 K compared to 301 K for all the samples. For example, PLLA crumbles easily at 351 K, while it shows good durability at 301 K.

本文言語English
ページ771-774
ページ数4
DOI
出版ステータスPublished - 2005
イベント2005 International Symposium on Electrical Insulating Materials, ISEIM 2005 - Kitakyushu, Japan
継続期間: 2005 6月 52005 6月 9

Conference

Conference2005 International Symposium on Electrical Insulating Materials, ISEIM 2005
国/地域Japan
CityKitakyushu
Period05/6/505/6/9

ASJC Scopus subject areas

  • 工学(全般)
  • 材料科学(全般)

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