GB2283749A - Liquid crystal polymers - Google Patents

Liquid crystal polymers

Info

Publication number
GB2283749A
GB2283749A GB9424325A GB9424325A GB2283749A GB 2283749 A GB2283749 A GB 2283749A GB 9424325 A GB9424325 A GB 9424325A GB 9424325 A GB9424325 A GB 9424325A GB 2283749 A GB2283749 A GB 2283749A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
crystal polymers
co2r
o2cr
achiral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9424325A
Other versions
GB2283749B (en
GB9424325D0 (en
Inventor
Mark Andrew Verrall
Simon Greenfield
David Coates
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB9212003A external-priority patent/GB2267710A/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9424325A priority Critical patent/GB2283749B/en
Publication of GB9424325D0 publication Critical patent/GB9424325D0/en
Publication of GB2283749A publication Critical patent/GB2283749A/en
Application granted granted Critical
Publication of GB2283749B publication Critical patent/GB2283749B/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/38—Polymers
    • C09K19/3833—Polymers with mesogenic groups in the side chain
    • C09K19/3895—Polymers with mesogenic groups in the side chain containing two or more mesogenic groups per monomer unit, e.g. polyitaconates, polymaleates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A novel LCP material based on di-esters of itaconic acid is disclosed having general formula (I), where R1 and R2 may or may not be the same and have general structure (II); (a) = (b), (c), (d); p = 2 to 14; q = 0 or 1; r = 1 or 2; s = 1 or 2; X = O, CO2, O2C, CH2; Y = C2H4, O, CO2, O2C; Z = CN, halogen, R, CO2R, OR, O2CR; wherein R = chiral or achiral; excluding X = O and X = CH2 when A = phenyl, r = s = 1, Y = CO2, O2C, q = 1 and Z = CN, R, CO2R, OR. <IMAGE>
GB9424325A 1992-06-05 1993-05-19 Liquid crystal polymers Revoked GB2283749B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9424325A GB2283749B (en) 1992-06-05 1993-05-19 Liquid crystal polymers

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9212003A GB2267710A (en) 1992-06-05 1992-06-05 Liquid chrystal polymers
GB9424325A GB2283749B (en) 1992-06-05 1993-05-19 Liquid crystal polymers
PCT/GB1993/001016 WO1993025632A1 (en) 1992-06-05 1993-05-19 Liquid crystal polymers

Publications (3)

Publication Number Publication Date
GB9424325D0 GB9424325D0 (en) 1995-03-01
GB2283749A true GB2283749A (en) 1995-05-17
GB2283749B GB2283749B (en) 1997-01-22

Family

ID=26301014

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9424325A Revoked GB2283749B (en) 1992-06-05 1993-05-19 Liquid crystal polymers

Country Status (1)

Country Link
GB (1) GB2283749B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0357850A1 (en) * 1988-09-07 1990-03-14 Stamicarbon B.V. Polymer composition, capable of forming a chiral nematic mesophase

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0357850A1 (en) * 1988-09-07 1990-03-14 Stamicarbon B.V. Polymer composition, capable of forming a chiral nematic mesophase

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
European Polymer Journal, 18, pp. 651-659 (1982) *
Macromolecules, 18, pp. 2337-2339 (1988) *
Molecular Crystals and Liquid Crystals, 155, pp 37-45 (1988) *

Also Published As

Publication number Publication date
GB2283749B (en) 1997-01-22
GB9424325D0 (en) 1995-03-01

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Legal Events

Date Code Title Description
773K Patent revoked under sect. 73(2)/1977