A polymer formulation comprising, based on the total weight of the formulation: - from 1 to 50 wt.%, based on the total weight of F, of at least one poly(aryl ethersulfone) (PAES) polymer comprising at least one terminal group of formula or: wherein - R 2 is H or CH 3, - X is a bond or (CH 2) n with n ranging from 1 to 20, and wherein the number average molecular weight (Mn) of the polymer is more than 12,000 g/mol, as determined by gel permeation chromatography using methylene chloride as a mobile phase and polystyrene standards, - at least one polyfunctional acrylate, - at least one solvent, - optionally at least one photoinitiator, - optionally at least one blocker; and - optionally at least one additive selected from the group consisting of fillers, antioxidants, antibacterial compounds and antistatic compounds. wherein polymer P comprises recurring units (R PAES) of formula: - each R 1 is, independently for each aromatic cycle, selected from the group consisting of a halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; - each i is, independently for each aromatic cycle, zero or an integer from 1 to 4; - T is selected from the group consisting of a bond, -CH 2 -; -O-; -SO 2 -; -S-; -C -; -C(CH 3) 2 -;-C(CF 3) 2 -; -C(=CCl 2)-; -C(CH 3)(CH 2 CH 2 COOH)-; -N=N-; -R a C=CR b -, where each R a and R b, independently from each other, is a hydrogen, a C1-C12-alkyl group, a C1-C12-alkoxy group, a C6-C18-aryl group; -(CH 2) m - and -(CF 2) m - with m being an integer from 1 to 6; an aliphatic divalent group, linear or branched, of up to 6 carbon atoms; or a combination thereof. and wherein the polyfunctional acrylate is according to formula: wherein - R 3 is H or an alkyl having 1 to 5 carbon atoms, preferably H or CH 3, - R 4 is according to formula: where n varies between 0 and 10, preferably between 0 and 3; or is selected from the group consisting of trimethylolpropane propoxytriacrylate, pentaerythritol triacrylate (PETA), glyceryl propoxytriacrylate (GPTA), di(trimethylolpropane) tetraacrylate, glycerol propoxylate triacrylate, pentaerythritol tetraacrylate, 1,3,5-triacryloylhexahydro-1,3,5-triazine, trimethylolpropane trimethacrylate, tris[2-(acryloyloxy)ethyl] isocyanurate and mixture thereof. - from 1 to 50 wt.%, based on the total weight of F, of at least one poly(aryl ethersulfone) (PAES) polymer comprising at least one terminal group of formula or: wherein - R 2 is H or CH 3, - X is a bond or (CH 2) n with n ranging from 1 to 20, and wherein the number average molecular weight (Mn) of the polymer is more than 12,000 g/mol, as determined by gel permeation chromatography using methylene chloride as a mobile phase and polystyrene standards, - R 2 is H or CH 3, - X is a bond or (CH 2) n with n ranging from 1 to 20, and - at least one polyfunctional acrylate, - at least one solvent, - optionally at least one photoinitiator, - optionally at least one blocker; and - optionally at least one additive selected from the group consisting of fillers, antioxidants, antibacterial compounds and antistatic compounds. - each R 1 is, independently for each aromatic cycle, selected from the group consisting of a halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; - each i is, independently for each aromatic cycle, zero or an integer from 1 to 4; - T is selected from the group consisting of a bond, -CH 2 -; -O-; -SO 2 -; -S-; -C -; -C(CH 3) 2 -;-C(CF 3) 2 -; -C(=CCl 2)-; -C(CH 3)(CH 2 CH 2 COOH)-; -N=N-; -R a C=CR b -, where each R a and R b, independently from each other, is a hydrogen, a C1-C12-alkyl group, a C1-C12-alkoxy group, a C6-C18-aryl group; -(CH 2) m - and -(CF 2) m - with m being an integer from 1 to 6; an aliphatic divalent group, linear or branched, of up to 6 carbon atoms; or a combination thereof. - R 3 is H or an alkyl having 1 to 5 carbon atoms, preferably H or CH 3, - R 4 is according to formula: