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

Research output: Contribution to conferencePaper

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
Pages771-774
Number of pages4
Publication statusPublished - 2005 Oct 7
Event2005 International Symposium on Electrical Insulating Materials, ISEIM 2005 - Kitakyushu, Japan
Duration: 2005 Jun 52005 Jun 9

Conference

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

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

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  • 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. 771-774. Paper presented at 2005 International Symposium on Electrical Insulating Materials, ISEIM 2005, Kitakyushu, Japan.