Patent ID: 7041234
Filing Date: 2006-05-09
Classification: B33Y,C09K,Y10S

Abstract:
1. A method for producing platform molecules comprising: providing a first phenylene ring consisting essentially of a first functional group at a para-position to a first halogenated carboxylic group; providing a second phenylene ring consisting essentially of a second functional group at a para-position to a second halogenated carboxylic group; providing a third phenylene ring comprising a desired substituent and comprising a first functionality at a para-position to a second functionality; and forming a mixture comprising said first phenylene rings, said second phenylene rings, and said third phenylene rings; exposing said mixture to conditions effective to react said first halogenated carboxylic group with said first functionality to produce a first ester bond, said conditions being effective to react said second halogenated carboxylic group with said second functionality to produce a second ester bond, producing platform molecules comprising terminal groups comprising said first functional group at position para- to said first ester bond and said second functional group at a position para- to said second ester bond, said terminal groups comprising other than polymerizable groups, one or more of said terminal groups being selected from the group consisting of H—(CH wherein, when both of said terminal groups comprise polymerizable groups, said desired substituent provides sufficient steric hindrance to achieve a nematic state at room temperature while suppressing crystallinity at room temperature.