The influence of cross-linking agents on ring-opening metathesis polymerized thermosets
- Authors
- Sheng, X.; Kessler, M. R.; Lee, J. K.
- Issue Date
- Aug-2007
- Publisher
- SPRINGER
- Keywords
- cross-linking agent; dicyclopentadiene; glass transition temperature; ROMP
- Citation
- JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v.89, no.2, pp 459 - 464
- Pages
- 6
- Journal Title
- JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
- Volume
- 89
- Number
- 2
- Start Page
- 459
- End Page
- 464
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/27221
- DOI
- 10.1007/s10973-006-8468-3
- ISSN
- 1388-6150
1588-2926
- Abstract
- The addition of suitable cross-linking agents with norbornene-based monomers has significant effects on the thermal properties of the resulting polymers formed by olefin metathesis. Ethylidene norbornene (ENB) and endo-dicyclopentadiene (endo-DCPD) were mixed separately with various loadings of three different cross-linking agents and then polymerized with the addition of Grubbs' catalyst. The polymerization kinetics and resulting glass transition temperature (T-g) of the systems were evaluated by differential scanning calorimetry (DSC). The addition of the first cross-linking agent, norbornadiene (CL-1), to both endo-DCPD and ENB resulted in decreasing glass transition temperatures with increasing concentrations. In contrast, the addition of the other two cross-linking agents (CL-2 and CL-3), which were both custom synthesized bifunctional norbornyl systems, to both endo-DCPD and ENB resulted in a monotonic increases in T-g with cross-linker concentration. By tailoring the loading of these custom cross-linking agents, the properties of these polymer systems can be controlled for various applications, including self-healing composites.
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