Effect of Redundant Chain Packing on the Uptake of Calcium Phosphate in Poly(2-Hydroxyethyl Methacrylate) Hydrogels

2007 ◽  
Vol 60 (6) ◽  
pp. 439 ◽  
Author(s):  
Traian V. Chirila ◽  
Anita J. Hill ◽  
David T. Richens
Keyword(s):  
Calcium Phosphate ◽  
Free Volume ◽  
Emission Spectroscopy ◽  
Calcium Uptake ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Hydroxyethyl Methacrylate ◽  
Chain Packing ◽  
Phosphate Ions

A method is described that allows reduction of the amount of calcium phosphate phases deposited spontaneously inside poly(2-hydroxyethyl methacrylate) (PHEMA), a hydrogel of biomedical importance. PHEMA homo-interpenetrating polymer networks (homo-IPNs) were synthesized and then treated in a calcifying solution. A reduction of calcium uptake of 58 to 75% was measured by ICP emission spectroscopy in the IPNs as compared to the PHEMA homopolymer (the parent network). The effect was rationalized in terms of reduction of the free volume available for the penetration and transport of Ca2+ and phosphate ions as a result of redundant chain packing through formation of IPNs.

Sequential homo-interpenetrating polymer networks of poly(2-hydroxyethyl methacrylate): Synthesis, characterization, and calcium uptake

2012 ◽  
Vol 126 (S2) ◽  
pp. E455-E466 ◽  
Author(s):  
Traian V. Chirila ◽  
Karina A. George ◽  
Wael A. Abdul Ghafor ◽  
Steven J. Pas ◽  
Anita J. Hill
Keyword(s):  
Calcium Uptake ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Hydroxyethyl Methacrylate

Phase separation in the polyurethane/poly(2-hydroxyethyl methacrylate) semi-interpenetrating polymer networks synthesized by different ways

2008 ◽  
Vol 48 (3) ◽  
pp. 588-597 ◽  
Author(s):  
Lyudmyla V. Karabanova ◽  
Gisele Boiteux ◽  
Gerard Seytre ◽  
Isabelle Stevenson ◽  
Andrew W. Lloyd ◽  
...  
Keyword(s):  
Phase Separation ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Hydroxyethyl Methacrylate
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