Halide-Free Neodymium Phosphate Based Catalyst for Highly cis-1,4 Selective Polymerization of Dienes

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dc.contributor.ORCID0000-0001-5374-8600 (Stefan, MC)
dc.contributor.authorRen, Yixin
dc.contributor.authorMiller, Justin T.
dc.contributor.authorPolderman, Stefanie T.
dc.contributor.authorVo, Trinh D.
dc.contributor.authorWallace, Adele C. M.
dc.contributor.authorCue, John Michael O.
dc.contributor.authorTran, Sarah T.
dc.contributor.authorBiewer, Michael C.
dc.contributor.authorStefan, Mihaela C.
dc.contributor.utdAuthorRen, Yixin
dc.contributor.utdAuthorMiller, Justin T.
dc.contributor.utdAuthorPolderman, Stefanie T.
dc.contributor.utdAuthorVo, Trinh D.
dc.contributor.utdAuthorWallace, Adele C. M.
dc.contributor.utdAuthorCue, John Michael O.
dc.contributor.utdAuthorTran, Sarah T.
dc.contributor.utdAuthorBiewer, Michael C.
dc.contributor.utdAuthorStefan, Mihaela C.
dc.date.accessioned2020-10-29T18:10:35Z
dc.date.available2020-10-29T18:10:35Z
dc.date.issued2019-01-24
dc.descriptionSupplementary material is available on publisher's website. Use the DOI link below.
dc.description.abstractNeodymium-based Ziegler-Natta type catalytic systems are known to produce polydienes with high cis-1,4 content. It is generally believed that in Ziegler-Natta catalytic systems, a halide or pseudohalide, whether in the catalyst itself or a separate source, is required for the success of the polymerization. In this work, we have synthesized an unusual halide-free neodymium diethyl phosphate catalyst for diene polymerization. This neodymium complex combined with triisobutylaluminum (TIBA), formed a binary catalytic system and was used to polymerize β-myrcene. The catalytic system displays high stereospecificity and produces poly(β-myrcene) with 96% cis-1,4 content and a relatively narrow molecular weight distribution (Mᵥᵥ/Mₙ = 1.80). Also, kinetic studies indicated the catalytic system gives a pseudo-living polymerization. The block copolymer poly(β-myrcene)-b-poly(isoprene) was successfully synthesized by sequential monomer addition, further demonstrating the pseudo-living nature of polymerization with the neodymium diethyl phosphate catalyst.
dc.description.departmentSchool of Natural Sciences and Mathematics
dc.description.sponsorshipNational Science Foundation (CHE-1566059) and Welch Foundation (AT-1740)
dc.identifier.bibliographicCitationRen, Yixin, Justin T. Miller, Stefanie T. Polderman, Trinh D. Vo, et al. 2019. "Halide-free neodymium phosphate based catalyst for highly cis-1,4 selective polymerization of dienes." RSC Advances 9(6): 3345-3350, 10.1039/c8ra10050k
dc.identifier.issn2046-2069
dc.identifier.issue6
dc.identifier.urihttps://dx.doi.org/10.1039/c8ra10050k
dc.identifier.urihttps://hdl.handle.net/10735.1/9058
dc.identifier.volume9
dc.language.isoen
dc.publisherRoyal Soc Chemistry
dc.rightsCC BY-NC 4.0 (Attribution-NonCommercial)
dc.rights©2019 The Royal Society of Chemistry
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.source.journalRSC Advances
dc.subjectMethylaluminoxane
dc.subjectCrystals--Structure
dc.subjectPolymerization
dc.subjectButadiene
dc.subjectNeodymium
dc.subjectChemistry
dc.titleHalide-Free Neodymium Phosphate Based Catalyst for Highly cis-1,4 Selective Polymerization of Dienes
dc.type.genrearticle

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