Journal ArticleDOI
Functionalized copolymers and their composites with polylactide and hydroxyapatite.
S. Jin,Kenneth E. Gonsalves +1 more
TLDR
In this paper, synthetic copolymers poly(e-caprolactone-co-vinylphosphonic acid) (P(O)(OH)2) and poly(poly(eCaprolactoenc-dimethylvinyl phosphoester)(P(MDOVPE)) were used to prepare composites with polylactide (PLac) and hydroxyapatite (HAp) and were observed by Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDX)Abstract:
Synthetic copolymers poly(e-caprolactone-co-vinylphosphonic acid) (P(MDOVPA) and poly(e-caprolactone-co-dimethylvinylphosphoester) (P(MDOVPE)) were used to prepare composites with polylactide (PLac) and hydroxyapatite (HAp). The P(MDOVPA) is used as filler in PLac films, as it has pendant functional groups P(O)(OH)2, providing nucleation sites for the deposition of HAp in simulated body fluid. HAp growth on P(MDOVPA) powder and PLac-P(MDOVPA) film was observed by Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDX) and X-ray diffraction (XRD). P(MDOVPE) and PLac blend are miscible, and the incorporation of hydrophilic P(MDOVPA) into PLac increased the hydrophilicity of the blend. Synthetic HAp was used to make multilayered, alternating organic–inorganic composites with porous PLac-P(MDOVPE) blends. ©©1999©Kluwer Academic Publishersread more
Citations
More filters
Journal ArticleDOI
Electrophoretic deposition of composite hydroxyapatite-chitosan coatings
TL;DR: In this article, an electrophoretic deposition (EPD) method has been developed for the fabrication of nanocomposite silica-chitosan coatings.
Journal ArticleDOI
Functional lactide monomers: methodology and polymerization.
Warren W. Gerhardt,David E. Noga,Kenneth I. Hardcastle,Andrés J. García,David M. Collard,Marcus Weck +5 more
TL;DR: This strategy allows for the introduction of functional groups along a poly(lactide) (PLA) backbone that after deprotection can be viewed as chemical handles for further functionalization of PLA, yielding improved biomaterials for a variety of applications.
Book ChapterDOI
Biopolymer Composites With High Dielectric Performance: Interface Engineering
Kalim Deshmukh,M. Basheer Ahamed,Rajendra R. Deshmukh,S. K. Khadheer Pasha,Pundlik Rambhau Bhagat,K. Chidambaram +5 more
TL;DR: In this article, the preparation and dielectric behavior of various biopolymer composites is presented, including metal nanoparticles and carbon-based nanofillers such as carbon nanotubes, graphene, etc.
Book ChapterDOI
Bioactive Polymer/Hydroxyapatite (Nano)composites for Bone Tissue Regeneration
TL;DR: A review of recent advances in polymer/(nano)HAp composites and nanocomposites for bone tissue regeneration, with particular emphasis on the material characteristics is presented in this article.
Journal ArticleDOI
Biodegradable and biocompatible nanocomposites of poly(∈-caprolactone) with hydroxyapatite nanocrystals: Thermal and mechanical properties
TL;DR: In this article, a tensile analysis of poly(ϵ-caprolactone) (PCL) with hydroxyapatite nanocrystals (HAP) prepared through the solvent-cast technique was characterized by means of transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and scanning electron microscope (SEM), and tensile tests.
References
More filters
Book
The Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules
TL;DR: The -NH2, -NHR, and -NR2 groups as discussed by the authors are the most commonly used groups for double bonds containing Nitrogen Atoms, and the -C=N and -N=C groups.
Book
Introduction to physical polymer science
TL;DR: In this paper, the authors present a model for the behavior of polymers in the Liquid Crystalline State (LCS) and the Amorphous State (ACS).
Journal ArticleDOI
Preparation and characterization of poly(l-lactic acid) foams
Antonios G. Mikos,Amy J Thorsen,Lisa A Czerwonka,Yuan Bao,Robert Langer,Douglas N. Winslow,Joseph P. Vacanti +6 more
TL;DR: In this article, a particulate-leaching method was developed to prepare highly porous biodegradable polymer membranes, which involved the casting of polymer/salt composite membranes followed by the dissolution of the salt.
Journal ArticleDOI
Laminated three-dimensional biodegradable foams for use in tissue engineering
TL;DR: Recent discoveries that organs and tissues can be regenerated and reconstructed, using cells cultured on synthetic biodegradable polymers, renders this method useful in creating polymer-cell graft for use in cell transplantation.
Journal ArticleDOI
Surface functional group dependence on apatite formation on self-assembled monolayers in a simulated body fluid
TL;DR: It can be said that the apatite formation initiated via calcium ion-absorption upon complexation with a negative surface-charged group may be dominant in biomaterial calcification where ionic species directly contact the biomaterial surface in body fluids.