Novel chemical recycling of poly(L-lactic acid) using montmorillonite K10

Kohei Okamoto, Kazunobu Toshima, Shuichi Matsumura

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

Abstract

In order to establish the sustainable chemical recycling process of poly(L-lactic acid), poly(L-lactic acid) with a molecular weight of 100,000 was transformed into the corresponding lactate oligomers having a molecular weight of few hundreds by using environmentally benign solid acids, such as Montmorillonite K10. Oligomerization reaction was independent of the polymer concentration in toluene. The oligomer could be repolymerized by the conventional chemical catalysts forming a high molecular weight poly(L-lactic acid). It was confirmed that the chemical recycling process was a stereoretention process.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Pages1941
Number of pages1
Volume54
Edition1
Publication statusPublished - 2005
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: 2005 May 252005 May 27

Other

Other54th SPSJ Annual Meeting 2005
CountryJapan
CityYokohama
Period05/5/2505/5/27

Fingerprint

Lactic acid
Clay minerals
Recycling
Molecular weight
Oligomers
Oligomerization
Toluene
Catalysts
Acids
Polymers

Keywords

  • Chemical recycling
  • Montmorillonite K10
  • Oligomer
  • Poly(L-lactic acid)
  • Solid acid

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Okamoto, K., Toshima, K., & Matsumura, S. (2005). Novel chemical recycling of poly(L-lactic acid) using montmorillonite K10. In Polymer Preprints, Japan (1 ed., Vol. 54, pp. 1941)

Novel chemical recycling of poly(L-lactic acid) using montmorillonite K10. / Okamoto, Kohei; Toshima, Kazunobu; Matsumura, Shuichi.

Polymer Preprints, Japan. Vol. 54 1. ed. 2005. p. 1941.

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

Okamoto, K, Toshima, K & Matsumura, S 2005, Novel chemical recycling of poly(L-lactic acid) using montmorillonite K10. in Polymer Preprints, Japan. 1 edn, vol. 54, pp. 1941, 54th SPSJ Annual Meeting 2005, Yokohama, Japan, 05/5/25.
Okamoto K, Toshima K, Matsumura S. Novel chemical recycling of poly(L-lactic acid) using montmorillonite K10. In Polymer Preprints, Japan. 1 ed. Vol. 54. 2005. p. 1941
Okamoto, Kohei ; Toshima, Kazunobu ; Matsumura, Shuichi. / Novel chemical recycling of poly(L-lactic acid) using montmorillonite K10. Polymer Preprints, Japan. Vol. 54 1. ed. 2005. pp. 1941
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