TECHNOLOGY FOCUS - POLYMERS - Preparation (Claimed): The compound (I) is prepared by reacting monomers of formula (IV) with monomers of formula P2-X5-A1-(Z2-A2)p-X6-P2 (V).P1 and P2=reactive functional group. Preferred Definitions:    B1 and B2=-C?=C-, -C?=C-C?=C-, -C?=C-C?=C-C?=C-, -C?=C-C?=C=C?=C=C?=C-, -C?=C(T')-, -C?=C(T')-C?=C-, -C?=C(fluoren-2,7-diyl (di-substituted by (L)r))-, -C?=C(fluoren-2,7-diyl (di-substituted by (L)r))-C?=C-, -(T')-C?=C(T')-, -C?=C(T')-C?=C-C?=C(T')-C?=C-, -C?=C(T')-C?=C(T')-C?=C-, -C?=C(T')-(T')-C?=C-, -C?=C(T')-C?=C(T')-, or -(T')-C?=C(T')-C?=C(T')-;    T'=1,4-phenyl (substituted by (L)r));    r=0-4;    L=F, Cl, Br, I, -CN, -NO2 , -NCO, -NCS, -OCN, -SCN, -C(=O)NR'R'a, -C(=O)X, -C(=O)OR', -C(=O)R', -NR'R'a, -OH, -SF5, optionally substituted silyl, 1-12C aryl or straight chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or 1-12C alkoxycarbonyloxy, where at least one H atom is optionally replaced by F or Cl;    X=halogen;    R1 and R2=single bond;    U1 and U2=H;    X1-X6=-O-, -CO-, -CO-O-, -O-CO- or -O-CO-O-;    A1 and A2=1,4-phenylene (where optionally 1, 2 or 3 CH groups are replaced by N) or cyclohexylene-1,4-diyl (where optionally 1 or 2 non-adjacent CH2 groups are replaced by O and/or S) (all optionally mono to tetra-substituted by L);    G'=-OCO(cyclohexan-1,4-diyl)-COO-, -OCO(phenyl-1,4-diyl)-COO-, -OCO(cyclohexan-1,4-diyl)-(cyclohexan-1,4-diyl)-COO-, -OCO(phenyl-1,4-diyl)-C(CH3)2-(phenyl-1,4-diyl)-COO-, -OCO(phenyl-1,4-diyl)-C2H5-(phenyl-1,4-diyl)-COO-, -OCO(CH2)i-COO-, -O(cyclohexan-1,4-diyl)-O-, -O(phenyl-1,4-diyl)-O-, -O(cyclohexan-1,4-diyl)-(cyclohexan-1,4-diyl)-O-, -O(phenyl-1,4-diyl)-C(CH3)2-(phenyl-1,4-diyl)-O-, -O(phenyl-1,4-diyl)-C2H5-(phenyl-1,4-diyl)-O-, or -O-(CH2)i-O-;and    i=1-12 (preferably 4-8).    EXAMPLE - Phenyl acetylene (4.18 ml) was dissolved in dimethoxyethane (160 ml). The solution was cooled on a dry ice bath to -78 degrees C. A solution of 1.6M butyl lithium in cyclohexane (28.18 ml) and N,N,N',N'-tetramethyl-ethylene-diamine (5.42 ml) was added slowly. The solution was stirred for 60 minutes. 1,4-Cyclohexanedione (2 g) was dissolved in dichloromethane (DCM) (80 ml) and added drop-wise over approximately 50 minutes. The solution was stirred for 30 minutes and then warmed to room temperature before being poured onto a solution of ammonium chloride and ice. After work up, trans-1,4-bis-phenylethynyl-cyclohexane-1,4-diol was obtained as a pale brown oil that was crystallized on standing. Trifluoroacetic anhydride (0.52 ml) was added to solution of dodecanedioic acid (0.43 g) in DCM (5 ml). The solution was stirred under nitrogen for 30 minutes. Trans-1,4-bis-phenylethynyl-cyclohexane-1,4-diol (0.59 g) was added to 50 ml 3-neck flask and partially dissolved in DCM (2.5 ml). The pre-made mixed anhydride was added to the alcohol and the reaction stirred overnight at room temperature. Water was subsequently added and the reaction stirred for approximately 2 hours. The layers were separated and organics washed with water, sodium hydrogen carbonate solution, water and brine, dried over sodium sulfate and concentrated to give the corresponding copolymer as dark brown oil (0.64 g). The polymer showed mass of 1305 indicating a chain length of 5 units.