Issue 54, 2015

Fabrication of highly durable hydrophobic PBZ/SiO2 surfaces

Abstract

The structure of the synthesized precursors [4-phenyl(diazenyl)phenol (PAP)] & [N,N′-bis(4-aminophenyl)terephthalamide (APTA)] and benzoxazine monomer [bis(6-phenyl diazenyl-3,4-dihydro-2H-1,3-benzoxazinyl)terephthalamide (BZO-TA)] were confirmed by Fourier Transform Infrared (FT-IR) and Nuclear Magnetic Resonance (1H & 13C-NMR) spectroscopy. The miscibility and curing behaviour of the SiO2 nanoparticles with benzoxazine was examined by Differential Scanning Calorimetric (DSC) analysis. Polybenzoxazine–silica nano hybrids [PBZ:SiO2] with different weight ratios of SiO2 nanoparticles (1, 3 and 5 wt%) were prepared by a thermal curing method. Surface morphological studies from SEM (Scanning Electron Microscopy) and AFM (Atomic Force Microscopy) revealed that the PBZ:SiO2 hybrids with same compositions show hierarchically structured roughness. FT-IR was used to investigate the thermal-curing reactions and hydrogen bonding interactions in both polybenzoxazine and its hybrids. Contact angle analysis indicated that the hybrids have a hydrophobic nature and low wettability. The thermal and mechanical stabilities of the hybrids were studied using Thermogravimetric (TGA) and Dynamic Mechanical Analysis (DMA).

Graphical abstract: Fabrication of highly durable hydrophobic PBZ/SiO2 surfaces

Article information

Article type
Paper
Submitted
10 Apr 2015
Accepted
24 Apr 2015
First published
28 Apr 2015

RSC Adv., 2015,5, 43601-43610

Author version available

Fabrication of highly durable hydrophobic PBZ/SiO2 surfaces

A. S. Parveen, P. Thirukumaran and M. Sarojadevi, RSC Adv., 2015, 5, 43601 DOI: 10.1039/C5RA06413A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements