Controlling properties of acrylate/epoxy interpenetrating polymer networks by premature termination of radical polymerization of acrylate

An approach is presented to control properties of sequentially synthesized acrylate/epoxy interpenetrating polymer networks (IPNs) and is used to print uniform and graded properties. These IPNs are constructed by partial formation of the acrylate network, removal of the excess components, expansion...

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Bibliographic Details
Published inPolymer engineering and science Vol. 59; no. 8; pp. 1729 - 1738
Main Authors Li, Wenlong, Delpouve, Nicolas, Araujo, Steven, Batteux, Florian, Bobo, Emilie, Saiter, Jean‐Marc, Tan, Li, Negahban, Mehrdad
Format Journal Article
LanguageEnglish
Published Hoboken, USA John Wiley & Sons, Inc 01.08.2019
Society of Plastics Engineers, Inc
Blackwell Publishing Ltd
Wiley-Blackwell
Subjects
Acrylates
Analysis
Chemical Sciences
Composition
Crosslinking
Curing
Engineering Sciences
Epoxy resins
Fourier transforms
Infrared spectroscopy
Interpenetrating networks
Materials
Nanoindentation
Network formation
Polymer crosslinking
Polymerization
Polymers
Properties
Properties (attributes)
Spectroscopy
Termination (polymerization)
United States
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Summary:An approach is presented to control properties of sequentially synthesized acrylate/epoxy interpenetrating polymer networks (IPNs) and is used to print uniform and graded properties. These IPNs are constructed by partial formation of the acrylate network, removal of the excess components, expansion with the epoxy system, and curing. The partial crosslinking of the initial network is controlled by photo polymerization and used to manipulate the final properties. The process is used to print homogeneous and graded IPNs with properties in the range of 10 to 1000 MPa. The curing of acrylate, the control mechanism, is studied by Fourier Transform Infrared Spectroscopy (FTIR) during curing on a temperature and environment controlled attenuated total reflection system. Fast scanning calorimetry is used to study network formation, nanoindentation is used to characterize local change of modulus, and uniaxial tensile testing is used to characterize stress response of the printed systems. POLYM. ENG. SCI., 59:1729–1738 2019. © 2019 Society of Plastics Engineers
ISSN:0032-3888
1548-2634
DOI:10.1002/pen.25173