Bench-Scale Synthesis and Characterization of Biodegradable Aliphatic-Aromatic Random Copolymers with 1,4-Cyclohexanedimethanol Units Toward Sustainable Packaging Applications

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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.
Publisher
AMER CHEMICAL SOC
Issue Date
2019-03
Language
English
Article Type
Article
Citation

ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v.7, no.5, pp.4734 - 4743

ISSN
2168-0485
DOI
10.1021/acssuschemeng.8b04720
URI
http://hdl.handle.net/10203/254114
Appears in Collection
CBE-Journal Papers(저널논문)
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