Abstract
The Langmuir–Blodgett (LB) membrane of amphiphilic di-block copolymer, PEO 40- b-PMA(Az) 19, was prepared at 24 mN m −1 of surface pressure in the two-dimensional solid state. The structure of 20 layers LB membrane was analyzed by X-ray diffraction (XRD), total X-ray reflectivity (TR) and grazing incidence X-ray scattering (GISAXS) measurements. The molecular section area of one hydrophobic PMA(Az) molecule obtained by π– A isotherm was 0.31 nm 2. The LB membrane thickness was 67.9 nm consisted of the ordered lamellar structure with 3.2 nm spacing from TR and XRD measurements. From azimuthally scattering of GISAXS, two ordered structures with 0.4 and 2.175 nm existed perpendicular to LB surface, the former was corresponded to the distance between azobenzenes with random orientation and the latter was to the compressed PMA(Az) 19 domains which oriented normal to the dipping direction.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
