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10 items by relevance
1 Conference paper

Side-chain liquid crystalline polyesters for optical storage

Ramanujam, P.S.

Year: 1993

Language: English

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2 Journal article

New side-chain liquid crystalline polyesters for optical storage

Pedersen, M.; Hvilsted, S.; Andruzzi, F.; Ramanujam, P.S.

Materialenyt — 1995, Issue 2, pp. 57-58

Year: 1995

Language: English

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lmodbie k h fnagpjc
3 Conference paper

New side-chain liquid crystalline polyesters for optical storage

Pedersen, M.; Hvilsted, S.; Andruzzi, F.; Ramanujam, P.S.

Nordiske Polymerdage 1994. Programme and Abstracts — 1994

Year: 1994

Language: English

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npegmoajb d fc khli
4 Journal article

Optical storage in side-chain liquid crystalline polyesters

Ramanujam, P.S.; Andruzzi, F.; Hvilsted, S.

Opt. Rev — 1994, Volume 1, Issue 1, pp. 30-32

Long-term, high resolution holographic storage has been achieved in side-chain liquid crystalline polyesters with high diffraction efficiency. The information can be completely erased by heating the film to about 80°C. The modular architecture of the polyesters permits a varition in the length

Year: 1994

Language: English

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5 Conference paper

Optical storage in side-chain liquid crystalline polyester

Ramanujam, P.S.

Year: 1993

Language: English

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bhe nkgi djflpcmao
6 Journal article

Side-chain liquid-crystalline polyesters for optical information storage

Hvilsted, Søren; Andruzzi, F.; Ramanujam, P.S.

Optics Letters — 1992, Volume 17, Issue 17, pp. 1234-1236

We report erasable holographic recording with a resolution of at least 2500 lines/mm on unoriented films of side-chain liquid-crystalline polyesters. Recording energies of approximately 1 J/cm2 have been used. We have obtained a diffraction efficiency of approximately 30% with polarization

Year: 1992

Language: English

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7 Journal article

Side-chain liquid crystalline polyesters for optical information storage

Ramanujam, P.S.; Holme, Christian; Hvilsted, Søren; Pedersen, Marianne; Andruzzi, Fulvio; Paci, Massimo; et al. (5 more)

Polymers for Advanced Technologies — 1996, Volume 7, Issue 9, pp. 768-776

Azobenzene side-chain liquid crystalline polyester structures suitable for permanent optical storage are described. The synthesis and characterization of the polyesters together with differential scanning calorimetry and X-ray investigations are discussed. Optical anisotropic investigations

Year: 1996

Language: English

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8 Conference paper

Novel side-chain liquid crystalline polyesters for optical information storage

Hvilsted, S.; Ramanujam, P.S.; Andruzzi, F.

4th European Polymer Federation Symposium on Polymeric Materials. Programme. Abstracts — 1992

Year: 1992

Language: English

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9 Conference paper

Side-chain liquid crystalline polyesters with unusual optical information storage properties

Ramanujam, P.S.; Hvilsted, S.; Andruzzi, F.; Kulinna, C.; Siesler, H.W.

Organic Thin Films for Photonic Applications. Conference Edition — 1993, pp. 244-247

Year: 1993

Language: English

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10 Journal article

Novel side-chain liquid crystalline polyester architecture for reversible optical storage

Hvilsted, Søren; Andruzzi, Fulvio; Kulinna, Chrisian; Siesler, Heinz W; Ramanujam, P.S.

Macromolecules — 1995, Volume 28, Issue 7, pp. 2172-2183

New side-chain liquid crystalline polyesters have been prepared by melt transesterification of diphenyl tetradecanedioate and a series of mesogenic 2-[omega-[4-[(4-cyanophenyl)azo]phenoxyl] alkyl]-1,3-propanediols, where the alkyl spacer is hexa-, octa-, and decamethylene in turn. The polyesters

Year: 1995

Language: English

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hfcdaem o bgjlnpki

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