Publikation:

Catalytic cyclopropanation of polybutadienes

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2010

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Urbano, Juan
Díaz-Requejo, María del Mar
Pérez, Pedro J.

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-126834
DOI (zitierfähiger Link)
https://doi.org/10.1002/pola.24231
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Journal of Polymer Science, Part A: Polymer Chemistry. 2010, 48(20), pp. 4439-4444. eISSN 0887-624X. Available under: doi: 10.1002/pola.24231

Zusammenfassung

Catalytic cyclopropanation of commercial 1,2- or 1,4-cis-polybutadiene, respectively, with ethyl diazoacetate catalyzed by [TpBr3Cu(NCMe)] (TpBr3 = hydrotris(3,4,5-tribromo-1-pyrazolyl)borate) at room temperature afforded high molecular weight (Mn > 105 mol−1) side-chain or main-chain, respectively, carboxyethyl cyclopropyl-substituted polymers with variable and controlled degrees of functionalization. Complete functionalization of 1,4-cis-polybutadiene afforded poly[ethylene-alt-(3-ethoxycarbonyl-cyclopropene)]. Catalytic hydrogenation of residual double bonds of partially cyclopropanated polybutadienes provided access to the corresponding saturated polyolefins. Thermal properties are reported.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
540 Chemie

Schlagwörter

carbene addition, catalysis, functionalization of polymers, organometallic catalysis, polar groups, polybutadienes

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ISO 690URBANO, Juan, Brigitte KORTHALS, María del Mar DÍAZ-REQUEJO, Pedro J. PÉREZ, Stefan MECKING, 2010. Catalytic cyclopropanation of polybutadienes. In: Journal of Polymer Science, Part A: Polymer Chemistry. 2010, 48(20), pp. 4439-4444. eISSN 0887-624X. Available under: doi: 10.1002/pola.24231
BibTex
@article{Urbano2010Catal-1058,
  year={2010},
  doi={10.1002/pola.24231},
  title={Catalytic cyclopropanation of polybutadienes},
  number={20},
  volume={48},
  journal={Journal of Polymer Science, Part A: Polymer Chemistry},
  pages={4439--4444},
  author={Urbano, Juan and Korthals, Brigitte and Díaz-Requejo, María del Mar and Pérez, Pedro J. and Mecking, Stefan}
}
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