Polymeric multimaterials by photochemical patterning of crystallinity
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA.; OSTI
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA.
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA.; McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
An organized combination of stiff and elastic domains within a single material can synergistically tailor bulk mechanical properties. However, synthetic methods to achieve such sophisticated architectures remain elusive. We report a rapid, facile, and environmentally benign method to pattern strong and stiff semicrystalline phases within soft and elastic matrices using stereo-controlled ring-opening metathesis polymerization of an industrial monomer,cis-cyclooctene. Dual polymerization catalysis dictates polyolefin backbone chemistry, which enables patterning of compositionally uniform materials with seamless stiff and elastic interfaces. Visible light–induced activation of a metathesis catalyst results in the formation of semicrystallinetranspolyoctenamer rubber, outcompeting the formation ofcispolyoctenamer rubber, which occurs at room temperature. This bottom-up approach provides a method for manufacturing polymeric materials with promising applications in soft optoelectronics and robotics.
- Research Organization:
- Univ. of Texas, Austin, TX (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- SC0019272
- OSTI ID:
- 2421078
- Journal Information:
- Science, Journal Name: Science Journal Issue: 6616 Vol. 378; ISSN 0036-8075
- Publisher:
- AAAS
- Country of Publication:
- United States
- Language:
- English
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