Synthesis and thermal stability of polyurethane using L-ascorbic acid

Takashi Akutagawa, Ken Kojio, Mutsuhisa Furukawa

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

Abstract

The purpose of this study is the improvement of thermal stability of the polyurethane elastmers (PUEs) by introduction of L-Ascorbic acid (L-As). The PUEs were prepared from poly(oxytetramethylene) glycol (PTMG: M̄n=2017), and 4,4'-diphenylmethane diisocyanate (MDI), ethylene glycol (EG) or mixture of L-As and EG (0:100 25:75 33:66 50:50 wt%) as a curing agent by a prepolymer method. Density, hardness, aggregation structure, molecular mobility and thermal stability were investigated by measuring FT-IR, 1H-pulsed NMR, thermal and dynamic viscoelastic properties. After thermal deterioration, density, hardness and dynamic storage modulus of rubbery plateau region of the PUEs decreased. With increasing L-As content, those magnitudes for the PUEs did not show large differences before and after thermal deterioration. These results clearly suggest that the L-As act as an oxidation inhibitor in the PUEs.

Original languageEnglish
Title of host publication54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan
Pages1273
Number of pages1
Volume54
Edition1
Publication statusPublished - 2005
Externally publishedYes
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: May 25 2005May 27 2005

Other

Other54th SPSJ Annual Meeting 2005
CountryJapan
CityYokohama
Period5/25/055/27/05

Fingerprint

Ascorbic acid
Polyurethanes
Thermodynamic stability
Ethylene glycol
Deterioration
Hardness
Corrosion inhibitors
Glycols
Molecular structure
Curing
Agglomeration
Elastic moduli
Nuclear magnetic resonance
Oxidation
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Akutagawa, T., Kojio, K., & Furukawa, M. (2005). Synthesis and thermal stability of polyurethane using L-ascorbic acid. In 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan (1 ed., Vol. 54, pp. 1273)

Synthesis and thermal stability of polyurethane using L-ascorbic acid. / Akutagawa, Takashi; Kojio, Ken; Furukawa, Mutsuhisa.

54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. Vol. 54 1. ed. 2005. p. 1273.

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

Akutagawa, T, Kojio, K & Furukawa, M 2005, Synthesis and thermal stability of polyurethane using L-ascorbic acid. in 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. 1 edn, vol. 54, pp. 1273, 54th SPSJ Annual Meeting 2005, Yokohama, Japan, 5/25/05.
Akutagawa T, Kojio K, Furukawa M. Synthesis and thermal stability of polyurethane using L-ascorbic acid. In 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. 1 ed. Vol. 54. 2005. p. 1273
Akutagawa, Takashi ; Kojio, Ken ; Furukawa, Mutsuhisa. / Synthesis and thermal stability of polyurethane using L-ascorbic acid. 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. Vol. 54 1. ed. 2005. pp. 1273
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