Toughening Cellulose: Compatibilizing Polybutadiene and Cellulose Triacetate Blends

Kyle J. Arrington, James V. Haag, Eric V. French, Mitsuhiro Murayama, Kevin J. Edgar, John B. Matson

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We report the synthesis of an ABA triblock copolymer of the structure CTA-b-PB-b-CTA (CTA = cellulose triacetate and PB = polybutadiene) and its ability to compatibilize immiscible CTA/PB polymer blends. CTA-b-PB-b-CTA was synthesized via ring-opening metathesis polymerization of cyclooctadiene (COD) in the presence of CTA containing a single olefin on the reducing end. The ABA triblock copolymer was incorporated into CTA/PB blends, resulting in films that were clear, tough, and creaseable, and increases in modulus, elongation at break, and toughness were observed with addition of as little as 1 wt % compatibilizer. Scanning electron microscopy revealed well-defined PB phases in the CTA matrix that decreased in domain size as more compatibilizer was added. This work may enhance the application scope of CTA and other cellulose-derived renewable polymers.

Original languageEnglish
Pages (from-to)447-453
Number of pages7
JournalACS Macro Letters
Volume8
Issue number4
DOIs
Publication statusPublished - Apr 16 2019
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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