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

doi:10.1109/iseim.2005.193487

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

^*Corresponding author for this work

Kagami Memorial Research Institute for Materials Science and Technology

Research output: Contribution to conference › Paper › peer-review

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 language	English
Pages	771-774
Number of pages	4
DOIs	https://doi.org/10.1109/iseim.2005.193487
Publication status	Published - 2005
Event	2005 International Symposium on Electrical Insulating Materials, ISEIM 2005 - Kitakyushu, Japan Duration: 2005 Jun 5 → 2005 Jun 9

Conference

Conference	2005 International Symposium on Electrical Insulating Materials, ISEIM 2005
Country/Territory	Japan
City	Kitakyushu
Period	05/6/5 → 05/6/9

ASJC Scopus subject areas

Engineering(all)
Materials Science(all)

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10.1109/iseim.2005.193487

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title = "Effects of water temperature on degradation of several biodegradable polymers immersed in water",

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.",

author = "N. Hirai and T. Tanaka and Y. Ohki and Y. Tajitsu and M. Kohtoh and S. Okabe",

year = "2005",

doi = "10.1109/iseim.2005.193487",

language = "English",

pages = "771--774",

note = "2005 International Symposium on Electrical Insulating Materials, ISEIM 2005 ; Conference date: 05-06-2005 Through 09-06-2005",

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T1 - Effects of water temperature on degradation of several biodegradable polymers immersed in water

AU - Hirai, N.

AU - Tanaka, T.

AU - Ohki, Y.

AU - Tajitsu, Y.

AU - Kohtoh, M.

AU - Okabe, S.

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

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

Abstract

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