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

Naoshi Hirai, T. Tanaka, Yoshimichi Ohki, Y. Tajitsu, M. Kohtoh, S. Okabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the International Symposium on Electrical Insulating Materials
Pages771-774
Number of pages4
Volume3
Publication statusPublished - 2005
Event2005 International Symposium on Electrical Insulating Materials, ISEIM 2005 - Kitakyushu
Duration: 2005 Jun 52005 Jun 9

Other

Other2005 International Symposium on Electrical Insulating Materials, ISEIM 2005
CityKitakyushu
Period05/6/505/6/9

Fingerprint

Biodegradable polymers
Degradation
Water
Lactic acid
Electric space charge
Durability
Polycaprolactone
Temperature
Polyethylene Terephthalates
Charge distribution
Polyethylene terephthalates
Ionization
Molecular weight
poly(lactic acid)

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Cite this

Hirai, N., Tanaka, T., Ohki, Y., Tajitsu, Y., Kohtoh, M., & Okabe, S. (2005). Effects of water temperature on degradation of several biodegradable polymers immersed in water. In Proceedings of the International Symposium on Electrical Insulating Materials (Vol. 3, pp. 771-774)

Effects of water temperature on degradation of several biodegradable polymers immersed in water. / Hirai, Naoshi; Tanaka, T.; Ohki, Yoshimichi; Tajitsu, Y.; Kohtoh, M.; Okabe, S.

Proceedings of the International Symposium on Electrical Insulating Materials. Vol. 3 2005. p. 771-774.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hirai, N, Tanaka, T, Ohki, Y, Tajitsu, Y, Kohtoh, M & Okabe, S 2005, Effects of water temperature on degradation of several biodegradable polymers immersed in water. in Proceedings of the International Symposium on Electrical Insulating Materials. vol. 3, pp. 771-774, 2005 International Symposium on Electrical Insulating Materials, ISEIM 2005, Kitakyushu, 05/6/5.
Hirai N, Tanaka T, Ohki Y, Tajitsu Y, Kohtoh M, Okabe S. Effects of water temperature on degradation of several biodegradable polymers immersed in water. In Proceedings of the International Symposium on Electrical Insulating Materials. Vol. 3. 2005. p. 771-774
Hirai, Naoshi ; Tanaka, T. ; Ohki, Yoshimichi ; Tajitsu, Y. ; Kohtoh, M. ; Okabe, S. / Effects of water temperature on degradation of several biodegradable polymers immersed in water. Proceedings of the International Symposium on Electrical Insulating Materials. Vol. 3 2005. pp. 771-774
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