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Start Over Author "Lei LS" Topic nanostructures
2 results on '"Lei LS"'

1. Fabrication of silver/cross-linked poly(vinyl alcohol) cable-like nanostructures underγ-ray irradiation.

Author

Wei-Tai WW Wu, Yusong YW Wang, Lei LS Shi, Qingren QZ Zhu, Wenmin WP Pang, Guoyong GX Xu, and Fei FL Lu

Subjects
ALCOHOLS (Chemical class), NANOSTRUCTURES, BLOCK copolymers, ACETONE
Abstract

Ag/cross-linked poly(vinyl alcohol) (PVA) cable-like nanostructureswere synthesized with control in an aqueous solution of a hydrolysableamphiphilic block polymer, poly(vinyl acetone) (PVKA) (ketalization degreeDH = 0.533)under γ-ray irradiation, via one-step in situ reduction ofAg+ and cross-linking of alcohol units. In the present approach, we try to control the speed ofthe cross-linking reaction of PVA chains (alcohol units), which are yielded from thehydrolysed PVKA, utilizing the low hydrolysis rate of the PVKA in dilute acidic solution. [ABSTRACT FROM AUTHOR]

Published
2005
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2. In situ formation of Ag flowerlike and dendritic nanostructures in aqueous solution andhydrolysis of an amphiphilic block copolymer.

Author

Wei-Tai WW Wu, Wenmin WP Pang, Guoyong GX Xu, Lei LS Shi, Qingren QZ Zhu, Yusong YW Wang, and Fei FL Lu

Subjects
POLYMERS, NANOSTRUCTURES, BLOCK copolymers, HYDROLYSIS
Abstract

Silver flowerlike and dendritic nanostructures were synthesized in an aqueous solution of ahydrolysable amphiphilic block copolymer polyvinylacetone (PVKA) via in situ reduction ofAg+ and hydrolysis of PVKA at room temperature. Compared with a previous result, thecomplete hydrolysis time of PVKA is greatly shortened in this process. [ABSTRACT FROM AUTHOR]

Published
2005
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