Evaluation of molecular aggregation structure and degradation behavior of biodegradable segmented polyurethanes prepared from lysine based diisocyanate

Michiko Hadano; Tomohiro Yamaguchi; Hideyuki Otsuka; Keigo Aoi; Sono Sasaki; Atsushi Takahara

Evaluation of molecular aggregation structure and degradation behavior of biodegradable segmented polyurethanes prepared from lysine based diisocyanate

Michiko Hadano, Tomohiro Yamaguchi, Hideyuki Otsuka, Keigo Aoi, Sono Sasaki, Atsushi Takahara

Department of Applied Molecular Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Segmented polyurethanes (SPU) and poly(urethane-urea)s (SPUU) were synthesized from lysine based diisocyanate (LDI), polycaprolactone diol (PCL), and 1,3-propanediol (PDO) or 1,4-butanediamine (BDA). DSC thermogram of SPU and SPUU showed that the glass transition temperature (T_g) of BDA-based hard segment is higher than that of PDO-based one. WAXD and SAXS of SPU and SPUU revealed the aggregation states of hard and soft segments. Furthermore, the degradation behavior was investigated by exposing the polymers to a buffer solution at 310 K (pH=7.6) and activated sludge. The higher degradation rate in activated sludge compared with that in a buffer solution means the biodegradation of these SPU and SPUU.

Original language	English
Title of host publication	54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan
Pages	2000
Number of pages	1
Volume	54
Edition	1
Publication status	Published - 2005
Event	54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: May 25 2005 → May 27 2005

Other

Other	54th SPSJ Annual Meeting 2005
Country/Territory	Japan
City	Yokohama
Period	5/25/05 → 5/27/05

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

Evaluation of molecular aggregation structure and degradation behavior of biodegradable segmented polyurethanes prepared from lysine based diisocyanate. / Hadano, Michiko; Yamaguchi, Tomohiro; Otsuka, Hideyuki et al.
54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. Vol. 54 1. ed. 2005. p. 2000.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hadano, M, Yamaguchi, T, Otsuka, H, Aoi, K, Sasaki, S & Takahara, A 2005, Evaluation of molecular aggregation structure and degradation behavior of biodegradable segmented polyurethanes prepared from lysine based diisocyanate. in 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. 1 edn, vol. 54, pp. 2000, 54th SPSJ Annual Meeting 2005, Yokohama, Japan, 5/25/05.

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abstract = "Segmented polyurethanes (SPU) and poly(urethane-urea)s (SPUU) were synthesized from lysine based diisocyanate (LDI), polycaprolactone diol (PCL), and 1,3-propanediol (PDO) or 1,4-butanediamine (BDA). DSC thermogram of SPU and SPUU showed that the glass transition temperature (Tg) of BDA-based hard segment is higher than that of PDO-based one. WAXD and SAXS of SPU and SPUU revealed the aggregation states of hard and soft segments. Furthermore, the degradation behavior was investigated by exposing the polymers to a buffer solution at 310 K (pH=7.6) and activated sludge. The higher degradation rate in activated sludge compared with that in a buffer solution means the biodegradation of these SPU and SPUU.",

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T1 - Evaluation of molecular aggregation structure and degradation behavior of biodegradable segmented polyurethanes prepared from lysine based diisocyanate

AU - Hadano, Michiko

AU - Yamaguchi, Tomohiro

AU - Otsuka, Hideyuki

AU - Aoi, Keigo

AU - Sasaki, Sono

AU - Takahara, Atsushi

PY - 2005

Y1 - 2005

N2 - Segmented polyurethanes (SPU) and poly(urethane-urea)s (SPUU) were synthesized from lysine based diisocyanate (LDI), polycaprolactone diol (PCL), and 1,3-propanediol (PDO) or 1,4-butanediamine (BDA). DSC thermogram of SPU and SPUU showed that the glass transition temperature (Tg) of BDA-based hard segment is higher than that of PDO-based one. WAXD and SAXS of SPU and SPUU revealed the aggregation states of hard and soft segments. Furthermore, the degradation behavior was investigated by exposing the polymers to a buffer solution at 310 K (pH=7.6) and activated sludge. The higher degradation rate in activated sludge compared with that in a buffer solution means the biodegradation of these SPU and SPUU.

AB - Segmented polyurethanes (SPU) and poly(urethane-urea)s (SPUU) were synthesized from lysine based diisocyanate (LDI), polycaprolactone diol (PCL), and 1,3-propanediol (PDO) or 1,4-butanediamine (BDA). DSC thermogram of SPU and SPUU showed that the glass transition temperature (Tg) of BDA-based hard segment is higher than that of PDO-based one. WAXD and SAXS of SPU and SPUU revealed the aggregation states of hard and soft segments. Furthermore, the degradation behavior was investigated by exposing the polymers to a buffer solution at 310 K (pH=7.6) and activated sludge. The higher degradation rate in activated sludge compared with that in a buffer solution means the biodegradation of these SPU and SPUU.

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M3 - Conference contribution

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BT - 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan

T2 - 54th SPSJ Annual Meeting 2005

Y2 - 25 May 2005 through 27 May 2005

ER -

Evaluation of molecular aggregation structure and degradation behavior of biodegradable segmented polyurethanes prepared from lysine based diisocyanate

Abstract

Other

All Science Journal Classification (ASJC) codes

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