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Title: Design and synthesis of optically transparent calcium-incorporated polymer complexes
Authors: Sindhu, S. 
Valiyaveettil, S. 
Keywords: Biocompatibility
Issue Date: 15-Dec-2004
Citation: Sindhu, S., Valiyaveettil, S. (2004-12-15). Design and synthesis of optically transparent calcium-incorporated polymer complexes. Journal of Polymer Science, Part B: Polymer Physics 42 (24) : 4459-4465. ScholarBank@NUS Repository.
Abstract: Transparent thin films of calcium-ion-incorporated polymer composites were synthesized with calcium carbonate (CaCO 3) and polymers such as poly(acrylic acid) (PAA), poly(ethylene glycol) (PEG), and methylcellulose. The homogeneous distribution of Ca 2+ in the composite films was observed because of the high concentration of COO - groups along the PAA backbone for the complexation of Ca 2+ ions. The optical transparency of the composites depends on the weight percentages of the three polymers and the molar concentration of CaCO 3 in the composites. Maximum transparency was obtained for a composite film with a PAA/CaCO 3 ratio of 9:1. The results indicated that methylcellulose improved the film-forming capabilities and that PEG improved the transparency of the composites. All polymer complexes were characterized with X-ray diffraction, fourier transfer infrared spectroscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, dynamic mechanical analysis, and optical transparency measurements. © 2004 Wiley Periodicals, Inc.
Source Title: Journal of Polymer Science, Part B: Polymer Physics
ISSN: 08876266
DOI: 10.1002/polb.20301
Appears in Collections:Staff Publications

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