Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session C49: Advanced Morphological Characterization of Polymer II: X-ray and Neutron Scattering
2:30 PM–5:30 PM,
Monday, March 4, 2019
BCEC
Room: 252A
Sponsoring
Unit:
DPOLY
Chair: Brian Collins, Washington State University
Abstract: C49.00012 : Phase behavior of poly(9-(4-vinylbenzyl)adenine)-block-polystyrene copolymers*
5:06 PM–5:18 PM
Presenter:
Eunseol Kim
(Pohang University of Science and Technology)
Authors:
Eunseol Kim
(Pohang University of Science and Technology)
Avnish Kumar Mishra
(Pohang University of Science and Technology)
Chungryong Choi
(Pohang University of Science and Technology)
Mooseong Kim
(Pohang University of Science and Technology)
Seungkyoo Park
(Pohang University of Science and Technology)
Soyeong Park
(Pohang University of Science and Technology)
Seonghyeon Ahn
(Pohang University of Science and Technology)
Jin Kim
(Pohang University of Science and Technology)
The phase behavior of PVBA-b-PS with various volume fractions of PS block (fPS) was investigated via small-angle X-ray scattering and transmission electron microscopy. With increasing fPS from 0.1 to 0.8, body-centered-cubic spheres of PS, hexagonally packed (HEX) cylinders of PS, lamellae, and HEX cylinders of PVBA were observed. Interestingly, PVBA-b-PS with fPS = 0.75 showed asymmetric lamellar microdomains.
We also prepared thin film of PVBA-b-PS on a substrate as a template for spatial arrangement of gold nanoparticles (AuNPs). When the surface of AuNPs was modified with thymine-containing polymer chains, AuNPs were selectively sequestered into PVBA microdomains through the complementary hydrogen bonding between thymine and adenine units.
*This work was supported by the National Creative Research Initiative Program supported by the National Research Foundation of KOREA(2013R1A3A2042196).
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