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https://dspace.ctu.edu.vn/jspui/handle/123456789/27334| Title: | Synthesis and blend of bio-based benzoxazines from cardanol and diphenolic acid |
| Authors: | Cao, Xuan Viet Nguyen, Thi Le Thanh Du, Ngoc Uy Lan |
| Keywords: | Diphenolic acid Cardanol Ring-opening polymerization Benzoxazine blend |
| Issue Date: | 2020 |
| Series/Report no.: | Vietnam Journal of Science and Technology;Vol.58(02) .- P.246-255 |
| Abstract: | In this study, two benzoxazine monomers, m-alkylphenyl-3,4-dihydro-2H-benzoxazine (CA-Bz) and 4,4-Bis-[6-(3-phenyl-3,4-dihydro-2H-1, 3-benzoxazine)] pentanoic acid (DPA-Bz) were successfully synthesized from fully bio-based phenols (cardanol and diphenolic acid). Their structures were confirmed by FTIR and NMR spectroscopy. CA-Bz/DPA-Bz blend was prepared at weight ratio of 3:1. Polymerization behavior of the blend was investigated by DSC. The ring-opening polymerization temperature of CA-Bz was found to decrease significantly by incorporation of carboxyl groups in DPA-Bz showing thereby the catalytic effect of acid functionality. The modified polybenzoxazine also showed an enhancement of the thermal properties. |
| URI: | http://dspace.ctu.edu.vn/jspui/handle/123456789/27334 |
| ISSN: | 2525-2518 |
| Appears in Collections: | Vietnam journal of science and technology |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| _file_ Restricted Access | 2.18 MB | Adobe PDF | ||
| Your IP: 18.218.209.8 |
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