NDLI: Grafting of glycidyl methacrylate upon coralline hydroxyapatite in conjugation with demineralized bone matrix using redox initiating system

Content Provider	Springer Nature Link
Author	Murugan, R. Rao, K. Panduranga
Copyright Year	2003
Abstract	Grafting of glycidyl methacrylate (GMA) upon coralline hydroxyapatite in conjugation with demineralized bone matrix (CHA-DBM) using equal molar ratio of potassium persulfate/sodium metabisulfite redox initiating system was investigated in aqueous medium. The optimum reaction condition was standardized by varying the concentrations of backbone, monomer, initiator, temperature and time. The results obtained imply that the percent grafting was found to increase initially and then decrease in most of the cases. The optimum temperature and time were found to be 50 δC and 180 min, respectively, to obtain higher grafting yield. Fourier transform infrared (FT-IR) spectroscopy and X-ray powder diffraction (XRD)method were employed for the proof of grafting. The FT-IR spectrum of grafted CHA-DBM showed epoxy groups at 905 and 853 cm$^{−1}$ and ester carbonyl group at 1731 cm$^{−1}$ of poly(glycidyl methacrylate) (PGMA) in addition to the characteristic absorptions of CHA-DBM, which provides evidence of the grafting. The XRD results clearly indicated that the crystallographic structure of the grafted CHA-DBM has not changed due to the grafting reaction. Further, no phase transformation was detected by the XRD analysis, which suggests that the PGMA is grafted only on the surface of CHA-DBM backbone. The grafted CHA-DBM will have better functionality because of their surface modification and hence they may be more useful in coupling of therapeutic agents through epoxy groups apart from being used as osteogenic material.
Starting Page	14
Ending Page	18
Page Count	5
File Format	PDF
ISSN	15985032
Journal	Macromolecular Research
Volume Number	11
Issue Number	1
e-ISSN	20927673
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-03-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	coralline hydroxyapatite DBM GMA grafting FT-IR Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Physical Chemistry Characterization and Evaluation of Materials Nanochemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics

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