TY - JOUR
T1 - Preparation of a nanostructured organoceramic and its reversible interlayer expansion
AU - Messersmith, Phillip B.
AU - Osenar, Paul
AU - Stupp, Samuel I.
N1 - Funding Information:
The authors gratefully acknowledge the support of this research by the Air Force Office of Scientific Research through Grant No. AFOSR 90-0242. This project was part of the research program of the University of Illinois Center for Cement Composite Materials.
PY - 1999/2
Y1 - 1999/2
N2 - We described previously the liquid phase synthesis and characterization of a nanostructured composite from an aqueous solution containing organic polymer and inorganic ions [J. Mater. Res. 7, 2599 (1992)]. The nanocomposite, termed an organoceramic, consisted of poly(vinyl alcohol) chains intercalated between the principal layers of a hydrated calcium aluminate ceramic. A key structural feature of the organoceramic is the polymer-induced expansion of the interlayer spacing by approximately 10 angstrom compared to the unmodified ceramic. In this paper, we describe the synthetic scheme that favors organoceramic formation and prove the existence of intercalated polymer by observation of reversible interlayer expansion and contraction in response to changes in ambient humidity. This property is unique to the organoceramic and is not observed in the unmodified calcium aluminate ceramic.
AB - We described previously the liquid phase synthesis and characterization of a nanostructured composite from an aqueous solution containing organic polymer and inorganic ions [J. Mater. Res. 7, 2599 (1992)]. The nanocomposite, termed an organoceramic, consisted of poly(vinyl alcohol) chains intercalated between the principal layers of a hydrated calcium aluminate ceramic. A key structural feature of the organoceramic is the polymer-induced expansion of the interlayer spacing by approximately 10 angstrom compared to the unmodified ceramic. In this paper, we describe the synthetic scheme that favors organoceramic formation and prove the existence of intercalated polymer by observation of reversible interlayer expansion and contraction in response to changes in ambient humidity. This property is unique to the organoceramic and is not observed in the unmodified calcium aluminate ceramic.
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U2 - 10.1557/JMR.1999.0044
DO - 10.1557/JMR.1999.0044
M3 - Article
AN - SCOPUS:0033076113
VL - 14
SP - 315
EP - 318
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
IS - 2
ER -