Strong liquid-crystalline polymeric compositions

Dowell, Flonnie

Title: Strong liquid-crystalline polymeric compositions

Abstract

Strong liquid-crystalline polymeric (LCP) compositions of matter. LCP backbones are combined with liquid crystalline (LC) side chains in a manner which maximizes molecular ordering through interdigitation of the side chains, thereby yielding materials which are predicted to have superior mechanical properties over existing LCPs. The theoretical design of LCPs having such characteristics includes consideration of the spacing distance between side chains along the backbone, the need for rigid sections in the backbone and in the side chains, the degree of polymerization, the length of the side chains, the regularity of the spacing of the side chains along the backbone, the interdigitation of side chains in sub-molecular strips, the packing of the side chains on one or two sides of the backbone to which they are attached, the symmetry of the side chains, the points of attachment of the side chains to the backbone, the flexibility and size of the chemical group connecting each side chain to the backbone, the effect of semiflexible sections in the backbone and the side chains, and the choice of types of dipolar and/or hydrogen bonding forces in the backbones and the side chains for easy alignment.

Inventors:

Dowell, Flonnie ^[1]

Los Alamos, NM

Publication Date:: Fri Jan 01 00:00:00 EST 1993

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

OSTI Identifier:: 869056

Patent Number(s):: US 5268584

Assignee:: United States of America as represented by Department of Energy (Washington, DC)

DOE Contract Number:: W-7405-ENG-36

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: strong; liquid-crystalline; polymeric; compositions; lcp; matter; backbones; combined; liquid; crystalline; lc; chains; manner; maximizes; molecular; interdigitation; yielding; materials; predicted; superior; mechanical; properties; existing; lcps; theoretical; design; characteristics; consideration; spacing; distance; backbone; rigid; sections; degree; polymerization; length; regularity; sub-molecular; strips; packing; attached; symmetry; attachment; flexibility; size; chemical; connecting; chain; effect; semiflexible; choice; types; dipolar; hydrogen; bonding; forces; easy; alignment; crystalline polymer; liquid crystalline; polymeric composition; mechanical properties; liquid crystal; superior mechanical; strong liquid-crystalline; polymeric compositions; liquid-crystalline polymeric; /252/

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                    Dowell, Flonnie. Strong liquid-crystalline polymeric compositions.  United States: N. p., 1993. 
        Web.

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                    Dowell, Flonnie. Strong liquid-crystalline polymeric compositions.  United States.

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                    Dowell, Flonnie. 1993.  
        "Strong liquid-crystalline polymeric compositions".  United States.  https://www.osti.gov/servlets/purl/869056.

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@article{osti_869056,

  title        = {Strong liquid-crystalline polymeric compositions},

  author       = {Dowell, Flonnie},

  abstractNote = {Strong liquid-crystalline polymeric (LCP) compositions of matter. LCP backbones are combined with liquid crystalline (LC) side chains in a manner which maximizes molecular ordering through interdigitation of the side chains, thereby yielding materials which are predicted to have superior mechanical properties over existing LCPs. The theoretical design of LCPs having such characteristics includes consideration of the spacing distance between side chains along the backbone, the need for rigid sections in the backbone and in the side chains, the degree of polymerization, the length of the side chains, the regularity of the spacing of the side chains along the backbone, the interdigitation of side chains in sub-molecular strips, the packing of the side chains on one or two sides of the backbone to which they are attached, the symmetry of the side chains, the points of attachment of the side chains to the backbone, the flexibility and size of the chemical group connecting each side chain to the backbone, the effect of semiflexible sections in the backbone and the side chains, and the choice of types of dipolar and/or hydrogen bonding forces in the backbones and the side chains for easy alignment.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/869056},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Jan 01 00:00:00 EST 1993},

  month        = {Fri Jan 01 00:00:00 EST 1993}

}

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Works referenced in this record:

Structural variations of liquid-crystalline polymers: Cross-shaped and laterally linked mesogens in main chain and side group polymers
journal, June 1986

Berg, Sibylle; Krone, Volker; Ringsdorf, Helmut
Die Makromolekulare Chemie, Rapid Communications, Vol. 7, Issue 6, p. 381-388
https://doi.org/10.1002/marc.1986.030070611

The ethics of the consultation process
journal, May 1987

Webb, William L.
Psychosomatics, Vol. 28, Issue 5
https://doi.org/10.1016/S0033-3182(87)72537-7

Combined liquid crystalline polymers: Mesogens in the main chain and as side groups
journal, April 1985

Reck, Bernd; Ringsdorf, Helmut
Die Makromolekulare Chemie, Rapid Communications, Vol. 6, Issue 4, p. 291-299
https://doi.org/10.1002/marc.1985.030060414

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Similar Records

Title: Strong liquid-crystalline polymeric compositions

Abstract

Citation Formats

Structural variations of liquid-crystalline polymers: Cross-shaped and laterally linked mesogens in main chain and side group polymers journal, June 1986

The ethics of the consultation process journal, May 1987

Combined liquid crystalline polymers: Mesogens in the main chain and as side groups journal, April 1985

Structural variations of liquid-crystalline polymers: Cross-shaped and laterally linked mesogens in main chain and side group polymers
journal, June 1986

The ethics of the consultation process
journal, May 1987

Combined liquid crystalline polymers: Mesogens in the main chain and as side groups
journal, April 1985