Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session E49: Polymer Nanocomposites I: Matrix-Free Nanoparticle Systems
8:00 AM–10:48 AM,
Tuesday, March 5, 2019
BCEC
Room: 252A
Sponsoring
Unit:
DPOLY
Chair: Francisco Buitrago, University of Pennsylvania
Abstract: E49.00009 : Deformation Mechanism of Mechanochromic Polymer Nanocomposites Fabricated by Self-Assembly of Colloidal Particles
10:24 AM–10:36 AM
Presenter:
Chao-Hung Cheng
(Graduate School of Engineering, Kyushu University)
Authors:
Chao-Hung Cheng
(Graduate School of Engineering, Kyushu University)
Shuhei Nozaki
(Graduate School of Engineering, Kyushu University)
Shiori Masuda
(Graduate School of Engineering, Kyushu University)
Nattanee Dechnarong
(Graduate School of Engineering, Kyushu University)
Kazutaka Kamitani
(Institute for Materials Chemistry and Engineering, Kyushu University)
Tomoyasu Hirai
(Institute for Materials Chemistry and Engineering, Kyushu University)
Ken Kojio
(Institute for Materials Chemistry and Engineering, Kyushu University)
Atsushi Takahara
(Institute for Materials Chemistry and Engineering, Kyushu University)
The heat-pressed film consisting of BCP-g-SiO2 exhibited structural color due to the formation of photonic colloidal structure. The color changed under uniaxial stretching. The first order ring of USAXS pattern changed from circle to ellipsoid under elongation, indicating the lattice distance increased along the elongation direction but decreased in the direction perpendicular to elongation. Moreover, the BCP-g-SiO2 with higher PBA ratio had larger transverse strain which was calculated from the d-spacing of the first order ring of structure factor, because the polymer layer was compressed more in the transverse direction under uniaxial stretching.
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