| Autor: |
Arrington KJ, Haag Iv JV, French EV, Murayama M, Edgar KJ, Matson JB |
| Jazyk: |
angličtina |
| Zdroj: |
ACS macro letters [ACS Macro Lett] 2019 Apr 16; Vol. 8 (4), pp. 447-453. Date of Electronic Publication: 2019 Apr 02. |
| DOI: |
10.1021/acsmacrolett.9b00136 |
| Abstrakt: |
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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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