Structural Characterization of Vulcanized Natural Rubber by Latex State 13C NMR Spectroscopy

• UKAWA Jinta

  Toyo Tire & Rubber, Co., Ltd

• KAWAHARA Seiichi

  Department of Chemistry, Faculty of Engineering, Nagaoka University of Technology

Bibliographic Information

Other Title

• ラテックス｀１３´Ｃ　ＮＭＲ法による加硫天然ゴムの構造解析
• ラテックス 13C NMRホウ ニ ヨル カリュウテンネン ゴム ノ コウゾウ カイセキ

Abstract

Crosslinking point is one of important factors that govern mechanical properties of vulcanized elastomers. The method of how to characterize the crosslinking points through latex state ¹³C NMR spectroscopy was proposed for vulcanized NR instead of long standing solid state ¹³C NMR spectroscopy. Small signals at 44ppm and 58ppm in the aliphatic carbon region, which appeared after vulcanization, were assigned by Distortionless Enhancement by Polarization Transfer (DEPT) and Attached Proton Test (APT) to secondary, tertiary and quaternary carbons of crosslinking points, respectively. The latex state ¹³C NMR spectroscopy was proved to be indispensable to characterize the vulcanized NR.

Journal

• NIPPON GOMU KYOKAISHI

  NIPPON GOMU KYOKAISHI 79 (12), 562-566, 2006

  THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

Keywords

• Natural Rubber
• Latex
• Structural Characterization
• NMR
• Rubber Vulcanizate

Details

• CRID: 1390001206563002496
• NII Article ID: 10017190217
• NII Article ID: 130001285547
• NII Book ID: AN00269207
• DOI: 10.2324/gomu.79.562
• ISSN: 18840442
• ISSN: 0029022X
• NDL BIB ID: 8587814
• Web Site: http://id.ndl.go.jp/bib/8587814
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8587814
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed