Polymeric materials

Abstract

A method of making a polymeric material is described, the method comprising contacting, for example polycondensing, a compound of formula with a compound of formula wherein each X is selected from a group comprising a chlorine and a fluorine atom, n represents 1, 2 or 3 and each Y 1 is selected from a group comprising an alkali metal and a hydrogen atom.

1 . A polymeric material which includes a moiety of formula 
       
         
           
           
               
               
           
         
         wherein n represents 1, 2 or 3 and said polymeric material has a Tg of at least 162° C. 
       
     
     
         2 . A polymeric material according to  claim 1 , which includes repeat units of formula 
       
         
           
           
               
               
           
         
         wherein n represents 1, 2 or 3 and said polymeric material has a Tg of at least 162° C. and a melt viscosity (MV) of at least 0.085 kNsm −2 , when measured using capillary rheometry operating at 400° C. at a shear rate of 1000 s −1  using a tungsten carbide die, 0.5×3.175 mm. 
       
     
     
         3 . A polymeric material according to  claim 1 , wherein said polymeric material has a Tm of less than 380° C. 
     
     
         4 . A polymeric material according to  claim 1  which is a substantially random copolymer comprising moieties of formula 
       
         
           
           
               
               
           
         
         wherein n represents 1, 2 or 3. 
       
     
     
         5 . A polymeric material according to  claim 4 , wherein the sum of the mole % of moieties IX are X in said polymeric material is at least 90 mole %. 
     
     
         6 . A polymeric material according to  claim 5 , wherein the sum is at least 95 mole %. 
     
     
         7 . A polymeric material according to  claim 1  which includes residual solvent of formula 
       
         
           
           
               
               
           
         
         where W is a direct link, an oxygen atom or two hydrogen atoms, one being attached to each benzene ring, and Z and Z′, which may be the same or different, are hydrogen atoms or phenyl groups. 
       
     
     
         8 . A polymeric material according to  claim 1  which is a tough crystalline thermoplastic polymeric material. 
     
     
         9 . A polymeric material according to  claim 1 , wherein n represents 1. 
     
     
         10 . A polymeric material according to  claim 1 , wherein the Tg of said polymeric material is at least 163° C. and is less than 170° C. 
     
     
         11 . A polymeric material according to  claim 1 , which has a Tm of less than 378° C. 
     
     
         12 . A polymeric material according to  claim 1 , wherein the ratio of the Tm to the Tg for said polymeric material is less than 2.32. 
     
     
         13 . A polymeric material according to  claim 1 , which is a substantially random copolymer comprising moieties of formula 
       
         
           
           
               
               
           
         
         wherein n represents 1, the sum of the mole % of units IX and X is at least 95 mole %, said polymeric material is a tough crystalline thermoplastic polymeric material, the Tg of said polymeric material is at least 163° C. and is less than 170° C., the Tm of said polymeric material is less than 378° C. and the ratio of the Tm to the Tg for said polymeric material is less than 2.32. 
       
     
     
         14 . A polymeric material which includes repeat units of formula 
       
         
           
           
               
               
           
         
         wherein n represents 1, 2 or 3, said polymeric material has a Tg of at least 163° C. and less than 170° C., a melt viscosity (MV) of at least 0.085 kNsm −2 , when measured using capillary rheometry operating at 400° C. at a shear rate of 1000 s −1  using a tungsten carbide die, 0.5×3.175 mm and a Tm of less than 380° C. 
       
     
     
         15 . A polymeric material according to  claim 14  which is a tough crystalline thermoplastic polymeric material. 
     
     
         16 . A polymeric material according to  claim 14 , wherein n represents 1. 
     
     
         17 . A polymeric material which is a substantially random copolymer comprising a moieties of formula 
       
         
           
           
               
               
           
         
         wherein n represents 1, 2 or 3, wherein the sum of the mole % of moieties IX are X in said polymeric material is at least 90 mole %, wherein the Tg of said polymeric material is at least 163° C. and is less than 170° C. and the Tm is less than 380° C. 
       
     
     
         18 . A polymeric material according to  claim 17 , wherein the sum of the mole % is at least 95 mole %. 
     
     
         19 . A polymeric material according to  claim 17  which includes residual solvent of formula 
       
         
           
           
               
               
           
         
         where W is a direct link, an oxygen atom or two hydrogen atoms, one being attached to each benzene ring, and Z and Z′, which may be the same or different, are hydrogen atoms or phenyl groups. 
       
     
     
         20 . A polymeric material according to  claim 17  which is a tough crystalline thermoplastic polymeric material, wherein n represents 1, the Tm is less than 378° C. and the ratio of the Tm to the Tg for said polymeric material is less than 2.32.