# US 2008/0188634 A1 · Polymers with high internal free volume

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- Number: US 2008/0188634 A1
- Document ID: US20080188634A1
- Status: Published application
- Kind: A1
- Application number: 11/880,868
- Filed: 2007-07-23
- Published: 2008-08-07
- Earliest claimed: 2000-08-21
- Assignees: Massachusetts Institute of Technology
- Inventors: Timothy M. Swager; Timothy M. Long; Zhengguo Zhu
- Web page: https://patentgrep.com/patent/US20080188634A1

## CPC

- H10P 14/683: {carbon-based polymeric organic materials, e.g. polyimides, poly cyclobutene or PVC}
- C08G 61/02: Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
- C08G 61/10: only aromatic carbon atoms, e.g. polyphenylenes
- C08G 61/12: Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08L 101/12: characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity (liquid crystal materials or compositions C09K19/00)
- C09K 11/06: containing organic luminescent materials
- C09K 19/38: Polymers
- H01B 1/12: organic substances {(organic macromolecular compounds or compositions C08)}
- H10K 85/154: {Ladder-type polymers}
- H10K 85/626: {containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene}
- H10K 85/653: {comprising only oxygen as heteroatom}
- C09K 2323/00: Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K 2323/03: Viewing layer characterised by chemical composition
- H10P: GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

Shape-persistent organic materials, including polymers, with large degrees of interior free volume are described, along with behaviors and phenomena enabled by their unique properties. One class of such a material is built up from triptycene base moieties wherein three benzene rings are bridged together about a [2.2.2] tricyclic ring system. These units can be assembled into discreet molecules and polymers. These materials and/or formulations thereof with liquid crystals or polymers are useful for the complexation of chemicals and/or polymers; they have very low dielectric constants for use as coatings in dielectric circuits, they provide additional ordering mechanisms in liquid crystals, and they display unusual mechanical responses when subjected to electrochemical, chemical, or mechanical stimuli.

## Claims

### Claim 1

A composition comprising:
a ladder polymer or oligomer comprising an iptycene.

### Claim at position 2

2-45. (canceled)