Kim, Ryung Il GEONCHANG LEE Lee, Jung-Hyun Park, Ji Jong Lee, Albert S. Hwang, Seung Sang 2024-01-19T14:01:04Z 2024-01-19T14:01:04Z 2022-01-10 2021-09 2637-6105 https://pubs.kist.re.kr/handle/201004/116507 Elastomeric bioscaffolds with tunable elasticity and biodegradability were synthesized via ring opening polymerization of polycaprolactone (PCL) and polylactide (PLA) with a bifunctional polyethylene glycol macroinitiator, followed by chain extension with diisocyanate to form urethane linkages. Through fine tuning of the macroinitiator and PCL/PLA weight fraction and molecular weight, a data set of elastomeric bioscaffolds gives structure-property insights into their thermal, mechanical, and biodegradability properties as they relate to triblock copolymer composition and mechanical weight. These materials were targeted to be 3D-printed by commercial devices, and their unique rheological properties enable impeccable multiscale microstructure formation. Simplicity in synthesis and fabrication as well as tunable biodegradability (1 day to 2 months) and elasticity (modulus 32-94 MPa) suggest the vast wide-ranging utility and prospective application in bioscaffolds for future therapeutic treatments. English AMER CHEMICAL SOC Structure-Property Relationships of 3D-Printable Chain-Extended Block Copolymers with Tunable Elasticity and Biodegradability Article 10.1021/acsapm.1c00860 1 ACS APPLIED POLYMER MATERIALS, v.3, no.9, pp.4708 - 4716 ACS APPLIED POLYMER MATERIALS 3 9 4708 4716 N scie scopus 000696179100039 2-s2.0-85114347324 Materials Science, Multidisciplinary Polymer Science Materials Science Polymer Science Article CRYSTALLIZATION BEHAVIOR POLYCAPROLACTONE POLYMERS DEGRADATION BLENDS PCL COMPOSITE SCAFFOLDS BIOINK PLA biodegradable polymers bioelastomer 3D printing block copolymer polyurethane