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In-situ preparation of poly(propylene fumarate)—hydroxyapatite composite

Paper ID Volume ID Publish Year Pages File Format Full-Text
10899 707 2005 7 PDF Available
Title
In-situ preparation of poly(propylene fumarate)—hydroxyapatite composite
Abstract

In-situ precipitation of hydroxyapatite (HAp) in the presence of poly(propylene fumarate) (PPF) is investigated. Amorphous calcium phosphate (ACP) precipitates in the presence of the polymer and remains in the amorphous form for a relatively long time, e.g. even after 24 h of coexistence with the mother solution. Our observations suggest that PPF interacts with the surface of the ACP particles and prevents them from transformation to crystalline hydroxyapatite. The PPF polymer seems to be more efficient in hindering the ACP to HAp transformation at higher pH conditions. From spectroscopic observations we hypothesize that the CO bond of the PPF molecules interact with the calcium ion of the ACP particles. In case of low molecular weight PPF this interaction may lead to the incorporation of the polymer within the growing ACP particles.

Keywords
In-situ synthesis; Amorphous calcium phosphate; Poly(propylene fumarate); Composite
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In-situ preparation of poly(propylene fumarate)—hydroxyapatite composite
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 26, Issue 35, December 2005, Pages 7297–7303
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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