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Title: | Thermal properties of polynorbornene (cis- and trans-) and hydrogenated polynorbornene |
Authors: | Esteruelas, Miguel A. CSIC ORCID; González, Fernando; Herrero, Juana; Lucio, Patricia; Oliván, Montserrat ; Ruiz-Labrador, Begoña | Issue Date: | May-2007 | Publisher: | Springer | Citation: | Polymer Bulletin 58(5-6): 923-931 (2007) | Abstract: | The thermal properties of trans-polynorbornene, cis-polynorbornene and hydrogenated polynorbornene were examined and its reversibility tested. Trans-polynorbornene samples, formed in various solvents, exhibit a softening range, from ambient temperature until 375 °C. However, syndiotactic cis-polynorbornene samples show a narrower melting range (between 150 and 375 °C). The fusion enthalpies of cis-polynorbornene samples are around 300-400 J/g. The temperature of decomposition is ca. 456 °C (minimum peak DSC) for trans-polynorbornene and ca. 466 °C, 10 °C higher, for cis-polynorbornene. The solvent used for the polymerization of norbornene has a negligible influence in the melting temperature range or in the decomposition temperature. The treatment with 2,6-di-tert-butyl-4-methyl-phenol during the isolation of polynorbornene leads to materials with different thermal properties. Trans-polynorbornene isolated without 2,6-di-tert-butyl-4-methyl-phenol exhibited an exothermic peak accompanied by an slight increase in weight (1-2%), while samples treated with 2,6-di-tert-butyl-4-methyl-phenol do not show these features. | Description: | 9 pages, 2 tables, 3 figures. | Publisher version (URL): | http://dx.doi.org/10.1007/s00289-007-0734-4 | URI: | http://hdl.handle.net/10261/19365 | DOI: | 10.1007/s00289-007-0734-4 | ISSN: | 0170-0839 | E-ISSN: | 1436-2449 |
Appears in Collections: | (ICMA) Artículos |
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