Production and Dynamic Mechanical Analysis of Macro-Scale Functionalized Polydicyclopentadiene Objects Facilitated by Rational Synthesis and Reaction Injection Molding

dc.contributor.authorCuthbert, Tyler J.
dc.contributor.authorLi, Tong
dc.contributor.authorWulff, Jeremy E.
dc.date.accessioned2020-06-19T20:19:09Z
dc.date.copyright2019en_US
dc.date.issued2019
dc.description.abstractPolydicyclopentadiene (PDCPD) is a ring-opening metathesis polymer derived from dicyclopentadiene. Valued for its light weight, excellent material strength, and good performance at both high and low temperatures, PDCPD is used to make body panels for tractors and heavy-duty trucks. We recently described the first functionalized form of PDCPD (fPDCPD) that maintains the thermal stability of the parent polymer. However, while commercial PDCPD components are produced through a reaction injection molding process on a very large scale, our fPDCPD polymer was developed on a small scale and has not been shown to be a viable substrate for reaction injection molding processes. Here we address these limitations by providing an improved synthesis of the fDCPD monomer mixture on a half-kilo scale and describing a method for separating the polymerizable monomer from other nonpolymerizable regioisomers without chromatography. We further demonstrate a reaction injection molding process for the creation of prototype fPDCPD components. Together, these increases in scale and advances in small object manufacturing facilitate the production of regular-dimensioned samples for dynamic mechanical analysis, permitting the first direct comparison of the mechanical properties of C-linked ester-functionalized PDCPD with those of unmodified PDCPD. Additionally, by using monomers of different regioisomer purity, products are achieved encompassing a broad range of glass transition temperatures and storage/loss moduli.en_US
dc.description.embargo2020-08-15
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThe authors thank Dr. Mathieu Lepage for collecting the DSC data shown in Figure 8A and Mr. Ryan Mandau for collecting the hardness data shown in Figure 8B. The research team also extends its gratitude to Ms. Ella Guan for the photo used for the graphical abstract to this work as well as photos of injection molded objects used in Figure 5B and 5C.en_US
dc.identifier.citationCuthbert, T. J., Li, T., & Wulff, J. E. (2019). Production and dynamic mechanical analysis of macro-scale functionalized Polydicyclopentadiene objects facilitated by rational synthesis and reaction injection molding. ACS Applied Polymer Materials, 1(9), 2460-2471. https://doi.org/10.1021/acsapm.9b00571en_US
dc.identifier.urihttps://doi.org/10.1021/acsapm.9b00571
dc.identifier.urihttp://hdl.handle.net/1828/11865
dc.language.isoenen_US
dc.publisherACS Applied Polymer Materialsen_US
dc.subjectfunctionalized polymers
dc.subjectpolydicyclopentadiene
dc.subjectreaction injection molding
dc.subjectdynamic mechanical analysis
dc.subjectstructure-property relationships
dc.subject.departmentDepartment of Chemistry
dc.titleProduction and Dynamic Mechanical Analysis of Macro-Scale Functionalized Polydicyclopentadiene Objects Facilitated by Rational Synthesis and Reaction Injection Moldingen_US
dc.typePostprinten_US

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