Bench-Scale Synthesis and Characterization of Biodegradable Aliphatic-Aromatic Random Copolymers with 1,4-Cyclohexanedimethanol Units Toward Sustainable Packaging Applications
- Authors
- Hahm S; Kim JS; Yun H; Park JH; Letteri RA; Kim BJ
- Issue Date
- Mar-2019
- Publisher
- AMER CHEMICAL SOC
- Keywords
- Biodegradable; Blown film; Packaging applications; Dimethyl carbonate; 1,4-Cyclohexanedimethanol; Bench-scale synthesis
- Citation
- ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v.7, no.5, pp.4734 - 4743
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS SUSTAINABLE CHEMISTRY & ENGINEERING
- Volume
- 7
- Number
- 5
- Start Page
- 4734
- End Page
- 4743
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/148134
- DOI
- 10.1021/acssuschemeng.8b04720
- ISSN
- 2168-0485
- Abstract
- The development of biodegradable packaging films can resolve environmental issues caused by plastic waste, but it still remains a great challenge to develop economically feasible polymers that simultaneously balance robust mechanical properties, biodegradability, and transparency. In this work, we describe the bench-scale synthesis (similar to 1.5 kg) and blown film characterization of new biodegradable aliphatic-aromatic copolymers, poly(1,4-butylene1,4-cyclohexanedimethylene carbonate-terephthalate)s (PBCCTs) with different molar ratios of two diol monomers, 1,4-cyclohexanedimethanol (CHDM) and 1,4-butandiol (BD), from 0:1 to 5:5 (CHDM/BD) to optimize the mechanical, optical, and thermal properties and biodegradability. The incorporation of CHDM units significantly impacted the thermal properties of the blown films from these copolymers; PBCCT films with 50 mol % CHDM content had a more amorphous and glassy character compared with the films with 0 mol % CHDM. And, PBCCT films with 30-50% CHDM content exhibited superior mechanical properties (tear strength = 11.5 kgf/mm and tensile strength = 369 kgf/cm(2)) and comparable transparency (haze = 16%) to those of nondegradable polyethylenes (PEs), the most commonly employed materials for packaging film applications. Taken together, the bench-scale synthesis of biodegradable polymers with suitable thermomechanical, optical, and permeability properties presented here showcases the potential of these materials as sustainable packaging materials.
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