Dresden 2014 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 37: Poster Session 2
CPP 37.68: Poster
Mittwoch, 2. April 2014, 15:00–19:00, P3
In situ Observation of the Ordering Process in Semicrystalline Diblock Co-polymer Thin Films — •Peng Zhang1, Gonzalo Santoro1, Shun Yu1, Sarathlal Koyiloth Vayalil1, Stephan Roth1, and Tianbai He2 — 1Deutsches Elektronen-Synchrotron, Notkestraße 85, D-22607 Hamburg, Germany — 2State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
The ordering process allows for explaining the structure transitions during polymer crystallization.1 However, the absence of the clear illustration of the underlying structure evolution on the nanoscale makes this theory not yet commonly accepted. We address this issue and in situ studied the surface structure evolution of PB-b-PCL diblock co-polymer thin films with AFM and microbeam grazing incidence small angle X-ray scattering (GISAXS). We successfully prepared PB-b-PCL thin films with regular microphase structure by thermal treatment.2 Then, we in situ studied the underlying structure evolution during crystallization using AFM and GISAXS (PETRA III, DESY) combined with hot stage. GISAXS is a reliable method to in situ study the underlying structure evolution in thin film because of its fast time-resolution ability and statistical relavance.3 We present our in situ results on the ordering process and correlated structure evolution during crystallization.(1)Strobl, G. Eur. Phys. J. E 2000, 3, 165.(2)Zhang, P.; Wang, Z.; Huang, H.; He, T. Macromolecules 2012, 45, 9139.(3)Muller-Buschbaum, P. Anal Bioanal Chem 2003, 376, 3.