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Biomimetic Processing of Calcium Carbonate-Chitosan Composites

Published online by Cambridge University Press:  15 February 2011

Sukun Zhang  and
K. E. Gonsalves
Sukun Zhang
Affiliation:
Institute of Materials Science, Polymer Science ProgramUniversity of Connecticut, Storrs, CT 06269, USA
K. E. Gonsalves
Affiliation:
Institute of Materials Science, Polymer Science ProgramUniversity of Connecticut, Storrs, CT 06269, USA Department of Chemistry, U- 136, University of Connecticut, Storrs, CT 06269, USA
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Extract

Ceramic-polymer composites produced by natural organisms are known to have properties far beyond those that can be achieved in present technological materials [1]. The mollusk shell, for example, starting with relatively weak structural ingredients calcium carbonate and chitin is one such ceramic-polymer composite. In nacre, the overall composite is more than 95 volume percent calcium carbonate, with the remainder an organic matrix of protein and chitin. The inorganic phase consists of highly oriented aragonite platelets forming the bricks and the organic matrix forming the mortar in between [1]. Even though nacre consists of a high amount of the inorganic component, it has excellent fracture toughness and high strength. Studies have been conducted to understand the factors which control the nucleation and orientation of crystallization [2-4]. However, very limited knowledge about the ceramic polymer interfaces, structure, chemistry and whether the interfacial interaction involves ion-binding is known.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 351: Symposium V – Molecularly Designed Ultrafine/Nanostructured Materials , 1994 , 245
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

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