期刊
RSC ADVANCES
卷 5, 期 60, 页码 48898-48907出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra07480k
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资金
- DST/Nanomission, New Delhi, India [SR/NM/NS-05/2011(G)]
The current work describes the synthesis of a novel cardanol-based benzoxazine monomer (CBz) from the renewable resource cardanol using caprolactamdiamine (CPLDA) by a solvent-free method. Thiol-functionalized mesoporous silica (TSBA-15) was incorporated into the cardanol-based benzoxazine matrix (PCBz) and the structure of thiol-functionalized mesoporous silica/cardanol based polybenzoxazine (TSBA-15/PCBz) composite was confirmed by FT-IR and NMR analysis. The surface morphology of TSBA-15/PCBz was determined using SEM and TEM. From the TEM results, it was observed that the dispersion of thiol-functionalized mesoporous silica into PCBz forms a fibrous material containing free volume. The thermal properties of this fibrous materials were studied by using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). The thermal properties were observed to depend on the weight percentage of the TSBA-15 material. Dielectric data obtained from impedance analysis shows that the TSBA-15/PCBz composites have lower dielectric constant values, and dielectric loss than that of neat PCBz material. The results indicate that TSBA-15/PCBz composites obtained in a renewable manner from waste cardanol can find applications in microelectronics as electrical resistors.
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