Fabrication of Ordered Nanopattern by using ABC Triblock Copolymer with Salt in Toluene

Fabrication of Ordered Nanopattern by using ABC Triblock Copolymer with Salt in Toluene

Abstract Ordered nanopatterns of triblock copolymer polystyrene-block-poly(2-vinylpyridine)-block- poly (ethylene oxide)(PS-b-P2VP-b-PEO) have been achieved by the addition of lithium chloride (LiCl). The morphological and structural evolution of PS-b-P2VP-b-PEO/LiCl thin films were systematically i...

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Bibliographic Details
Main Authors: Hailiang Huang, Benbin Zhong, Xihong Zu, Hongsheng Luo, Wenjing Lin, Minghai Zhang, Yazhou Zhong, Guobin Yi
Format: Article
Language:English
Published: SpringerOpen 2017-08-01
Series:Nanoscale Research Letters
Subjects:
Ultrasound
Microphase separation
Triblock copolymer
Lithium chloride
Online Access:http://link.springer.com/article/10.1186/s11671-017-2260-0
Description
Summary:Abstract Ordered nanopatterns of triblock copolymer polystyrene-block-poly(2-vinylpyridine)-block- poly (ethylene oxide)(PS-b-P2VP-b-PEO) have been achieved by the addition of lithium chloride (LiCl). The morphological and structural evolution of PS-b-P2VP-b-PEO/LiCl thin films were systematically investigated by varying different experimental parameters, including the treatment for polymer solution after the addition of LiCl, the time scale of ultrasonic treatment and the molar ratio of Li+ ions to the total number of oxygen atoms (O) in PEO block and the nitrogen atoms (N) in P2VP block. When toluene was used as the solvent for LiCl, ordered nanopattern with cylinders or nanostripes could be obtained after spin-coating. The mechanism of nanopattern transformation was related to the loading of LiCl in different microdomains.
ISSN:1931-7573
1556-276X

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