Thin Polymer Film (IMAGE) Wiley Caption Caught on film: Ultrathin (50 nm) films of crystalline polyethylene were prepared at room temperature from prefabricated polymer nanocrystals functioning as building blocks. The very small particle size, in combination with the phenomenon that the amorphous regions are located at the surface exclusively in polymer single crystals, results in efficient interaction between particles in the films. Credit (C) Wiley-VCH 2008 Usage Restrictions Permission to use with appropriate credit and link to http://dx.doi.org/10.1002/anie.200801028 License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.