A Synthetic Analog of the Biomineralization Process: Controlled Crystallization of an Inorganic Phase by a Polymer Matrix
A Synthetic Analog of the Biomineralization Process: Controlled Crystallization of an Inorganic Phase by a Polymer Matrix
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DOI:
10.1021/ja00090a021
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发表时间:
1994-06
影响因子:
15
通讯作者:
Jun Lin;Elizabeth Cates;P. Bianconi
中科院分区:
文献类型:
--
作者:
Jun Lin;Elizabeth Cates;P. Bianconi
A biomimetic in situ synthesis of CdS in PEO has been devised, which produces composites in which the inorganic phase displays uniformity of size, morphology, phase, and crystallographic orientation. Such regularity is displayed in thin composite films (< 300 nm thick); inanalogous thick films (= 200 thick) onlyamorphous CdS is produced. Molecular level solvation, matrix preorganization, and strong binding of the inorganic reagents have been shown to be critical for matrix mediation. Solvation or relaxation of the matrix leads to loss ofcontrol over crystallization. Addition of a surfactant, AOT, to the reaction systemhas been shown to effect uniformity of CdS crystal orientation, size, and morphology in thin films.