In-situ dispersed photopolymerization of cyclic acetals/hydroxyapatite composites: effects of the content of hydroxyapatite

Ruixue Yin; Wentao Wu; Kemin Wang; Wen Jun Zhang

doi:10.1016/j.msec.2014.10.040

In-situ dispersed photopolymerization of cyclic acetals/hydroxyapatite composites: effects of the content of hydroxyapatite

Mater Sci Eng C Mater Biol Appl. 2015 Jan:46:239-45. doi: 10.1016/j.msec.2014.10.040. Epub 2014 Oct 22.

Authors

Ruixue Yin¹, Wentao Wu², Kemin Wang³, Wen Jun Zhang⁴

Affiliations

¹ Complex and Intelligent Research Center, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, PR China.
² School of Materials Science and Engineering, Changzhou University, Changzhou 213164, PR China.
³ School of Materials Science and Engineering, Changzhou University, Changzhou 213164, PR China. Electronic address: wangkm61@gmail.com.
⁴ Complex and Intelligent Research Center, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, PR China; Division of Biomedical Engineering, University of Saskatchewan, Canada.

PMID: 25491983
DOI: 10.1016/j.msec.2014.10.040

Abstract

In this work, hydroxyapatite (HA) was first dispersed into cyclic acetal unit based monomers (EHD), and then EHD/HA composites were obtained by in-situ photopolymerization. FTIR and XRD analyses were used to successfully confirm the chemical composition of this composite. Real-time FTIR revealed that there was no significant effect on the photopolymerization process until the HA content was up to 30%. Several samples of such a composite with different loading amounts of HA were prepared to study effects of HA concentrations on the EHD/HA composite in particular in terms of SEM, TG, DMA, water contact angel and in-vitro biocompatibility. The results appeared that the loading of HA could significantly improve the thermal stability, mechanical properties and in vitro biocompatibility of the EHD/HA composite compared with EHD networks.

Keywords: Cyclic acetals; Hydroxyapatite; In-situ dispersed; Photopolymerization; Polymer/mineral composites.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Acetals / chemistry*
Durapatite / chemistry*
Microscopy, Electron, Scanning
Photochemistry*
Polymerization*
Spectroscopy, Fourier Transform Infrared

Substances

Acetals
Durapatite