@article{1c5e7db4c2c34b5cb57bdffad7a31519,
title = "Time- And space-resolved fluorescence study on interfacial mobility of polymers",
abstract = "Segmental mobility of a typical amorphous polymer, polystyrene, at the interface with a solid substrate was examined noninvasively by fluorescence lifetime measurement using evanescent wave excitation. Glass transition temperature (Tg) was discernibly higher at the interface than in the bulk. Measurements at different incident angles of excitation pulses revealed that Tg became higher the closer to the interface. This is the observation for a Tg gradient of polymers at the interface.",
author = "Keiji Tanaka and Yu Tsuchimura and Akabori, {Kei Ichi} and Fuyuki Ito and Toshihiko Nagamura",
note = "Funding Information: This research was partly supported by the Grants-in-Aid for Scientific Research in Priority Area “Molecular Nano Dynamics,” for Scientific Research (Award No. 142051222), for Young Scientists (Award No. 18685014), and for the 21st century COE program “Functional Innovation of Molecular Informatics” from the Ministry of Education, Culture, Sports, Science and Technology, Japan.",
year = "2006",
doi = "10.1063/1.2335593",
language = "English",
volume = "89",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "6",
}