This volume contains some of the papers presented at the 16th Italian Meeting on Polymer Science and Technology of the Macromolecular Italian Association (AIM) which was held in Pisa, Italy, on September 22-25, 2003. The content is devoted to polymer synthesis and Modification, structure-property relationships, blending and processing, nanostructured and hybrid systems, functional and special polymers, environmental aspects and recycling. The book offers a significant insight into the latest achievements in polymer science and technology in modern areas of ongoing research activities in Italy and throughout the world through the intense international collaborations in which Italian groups are engaged. Therefore, the volume may be of help to enlarge the research perspectives of polymer chemists, engineers and physicists in both academia and industry.