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Journal article
Influence of Epoxidized Cardanol Functionality and Reactivity on Network Formation and Properties
Polymers, v 12(9)
01 Sep 2020
PMID: 32872398
Abstract
Cardanol is a renewable resource based on cashew nut shell liquid (CNSL), which consists of a phenol ring with a C15 long aliphatic side chain in the meta position with varying degrees of unsaturation. Cardanol glycidyl ether was chemically modified to form side-chain epoxidized cardanol glycidyl ether (SCECGE) with an average epoxy functionality of 2.45 per molecule and was cured with petroleum-based epoxy hardeners, 4-4 '-methylenebis(cyclohexanamine) and diethylenetriamine, and a cardanol-based amine hardener. For comparison, cardanol-based diphenol diepoxy resin, NC514 (Cardolite), and a petroleum-based epoxy resin, diglycidyl ether of bisphenol-A (DGEBA) were also evaluated. Chemical and thermomechanical analyses showed that for SCECGE resins, incomplete cure of the secondary epoxides led to reduced cross-link density, reduced thermal stability, and reduced elongation at break when compared with difunctional resins containing only primary epoxides. However, because of functionality greater than two, amine-cured SCECGE produced a T-g very similar to that of NC514 and thus could be useful in formulating epoxy with renewable cardanol content.
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Details
- Title
- Influence of Epoxidized Cardanol Functionality and Reactivity on Network Formation and Properties
- Creators
- Emre Kinaci - Drexel UniversityErde Can - Yeditepe UniversityJohn J. La Scala - United States Army Research LaboratoryGiuseppe R. Palmese - Drexel University
- Publication Details
- Polymers, v 12(9)
- Publisher
- Mdpi
- Number of pages
- 14
- Grant note
- W911NF-13-2-0046 / US Army Research Laboratory (ARL) under the Center for Sustainable Corrosion Prevention (CSCP)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000581294400001
- Scopus ID
- 2-s2.0-85092040784
- Other Identifier
- 991019169011704721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Polymer Science