A method for making an article comprising the steps of i) providing a polymer substrate of an amorphous, non-crystallizable polymer; ii) contacting a selected surface region of the polymer substrate with a swelling agent, the swelling agent having a high solubility limit for the polymer substrate, whereby a surface part of the polymer substrate is swollen and a part underneath the surface of the polymer substrate is non-swollen; iii) contacting the polymer substrate of step (ii), wherein a part of the surface of the polymer substrate is swollen, with a coagulating agent, the coagulating agent a low solubility limit for the polymer and being miscible with the swelling agent, whereby the swollen part of the polymer is precipitated back onto the non-swollen part of the polymer substrate, whereby an article having a structured surface is obtained; an article prepared by the method mentioned before and the use of the article in indoor applications selected from furniture, household appliances, computer peripherals, clothing apparel, filters and membranes and outdoor applications selected from cooling equipment, drainage pipes and technical textiles.