POLYMER SCAFFOLDS BEARING AZOBENZENE-POTENTIAL FOR OPTICAL INFORMATION STORAGE

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POLYMER SCAFFOLDS BEARING AZOBENZENE-POTENTIAL FOR OPTICAL INFORMATION STORAGE

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- POLYMER SCAFFOLDS BEARING AZOBENZENE-POTENTIAL FOR OPTICAL INFORMATION STORAGE
- POLYMER SCAFFOLDS BEARING AZOBENZENE-POTENTIAL FOR OPTICAL INFORMATION STORAGE
- 高分子科学（英文版） 2001年19卷第2期页码：147-153
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- 纸质出版：2001-04-20
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POLYMER SCAFFOLDS BEARING AZOBENZENE-POTENTIAL FOR OPTICAL INFORMATION STORAGE[J]. 高分子科学（英文版）, 2001,19(2):147-153.

POLYMER SCAFFOLDS BEARING AZOBENZENE-POTENTIAL FOR OPTICAL INFORMATION STORAGE[J]. 2001, 19(2): 147-153.
POLYMER SCAFFOLDS BEARING AZOBENZENE-POTENTIAL FOR OPTICAL INFORMATION STORAGE[J]. 高分子科学（英文版）, 2001,19(2):147-153. DOI：

POLYMER SCAFFOLDS BEARING AZOBENZENE-POTENTIAL FOR OPTICAL INFORMATION STORAGE[J]. 2001, 19(2): 147-153. DOI：

摘要

The fundamental optical storage mechanism of the laser light eddressable azobenzene moiety is briefly introduced.A modular and flexible synthesis design furnishes polyester matrices covalently integrating cyanoazobenzene in regularlyspaced side chains. Thin films of these materials are particularly well suited for holographic storape. Notable figures of meritsof liquid crystalline polyesters are response time to blue-green laser light of the order of nanoseconds

storage capacityexpressed as 5000 lines/mm

and high

permanent(almost nine years)diffraction efficiency of the order of 50% or greater

and erasability.The implications of the main chain nature for polyester morphology and for the permanency of the induced anisotropy are discussed.The design and methods of preparation of other significantly different polymer scaffolds supporting cyanoazobenzene are elaborated.Oligopeptides always result in amorphous materials

whereas copolymerthacrylates and dendritic or hyperbranched polyesters provide some materials that exhibit liquid crystallinity.However

none of these scaffolds affords materials that result in permanent anisotropy when exposed to interfering laser light.

Abstract

storage capacityexpressed as 5000 lines/mm

and high

permanent(almost nine years)diffraction efficiency of the order of 50% or greater

whereas copolymerthacrylates and dendritic or hyperbranched polyesters provide some materials that exhibit liquid crystallinity.However

none of these scaffolds affords materials that result in permanent anisotropy when exposed to interfering laser light.

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