@article {Sun:2012:1533-4880:1984,
title = "A Thermally Tunable Inverse Opal Photonic Crystal for Monitoring Glass Transition",
journal = "Journal of Nanoscience and Nanotechnology",
parent_itemid = "infobike://asp/jnn",
publishercode ="asp",
year = "2012",
volume = "12",
number = "3",
publication date ="2012-03-01T00:00:00",
pages = "1984-1987",
itemtype = "ARTICLE",
issn = "1533-4880",
eissn = "1533-4899",
url = "https://www.ingentaconnect.com/content/asp/jnn/2012/00000012/00000003/art00036",
doi = "doi:10.1166/jnn.2012.5672",
author = "Sun, Liguo and Xie, Zhuoying and Xu, Hua and Xu, Ming and Han, Guozhi and Wang, Cheng and Bai, Xuduo and Gu, ZhongZe",
abstract = "An optical method was developed to monitor the glass transition of the polymer by taking advantage of reflection spectrum change of the thermally tunable inverse opal photonic crystal. The thermally tunable photonic bands of the polymer inverse opal photonic crystal were traceable to
the segmental motion of macromolecules, and the segmental motion was temperature dependent. By observing the reflection spectrum change of the polystyrene inverse opal photonic crystal during thermal treatment, the glass transition temperature of polystyrene was gotten. Both changes of the
position and intensity of the reflection peak were observed during the glass transition process of the polystyrene inverse opal photonic crystal. The optical change of inverse opal photonic crystal was so large that the glass transition temperature could even be estimated by naked eyes. The
glass transition temperature derived from this method was consistent with the values measured by differential scanning calorimeter.",
}