Alternating ring-opening copolymerization of epoxides with saturated and unsaturated cyclic anhydrides: Reduced viscosity poly(propylene fumarate) oligomers for use in cDLP 3D printing

Journal Article (Journal Article)

A ring-opening copolymerization of propylene oxide with saturated and unsaturated anhydrides using Mg(BHT)2(THF)2 catalyst followed by an isomerization yields poly(propylene fumarate) (PPF) oligomers with well-defined molecular mass, narrow molecular mass distribution, quantitative end-group fidelity, and a reduced viscosity compared to PPF. Mass spectrometry analyses and kinetic studies show that the resulting copolymers have gradient compositional sequencing. The lower viscosity of the statistical copolymer affords 3D printing with a lower diluent fraction (30 wt%) and higher molecular mass copolymer in the resin formulations. We also show that the mechanical properties of the printed structures can be tailored according to the monomer composition and resin formulation.

Full Text

Duke Authors

Cited Authors

  • Shin, Y; Becker, ML

Published Date

  • May 21, 2020

Published In

Volume / Issue

  • 11 / 19

Start / End Page

  • 3313 - 3321

Electronic International Standard Serial Number (EISSN)

  • 1759-9962

International Standard Serial Number (ISSN)

  • 1759-9954

Digital Object Identifier (DOI)

  • 10.1039/d0py00453g

Citation Source

  • Scopus