Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99199
Title: Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film
Authors: Yang, Ping
Wang, Shuchao
Teng, Xue
Wei, Wei
Dravid, Vinayak P.
Huang, Ling
Keywords: DRNTU::Science::Chemistry::Physical chemistry
Issue Date: 2012
Source: Yang, P., Wang, S., Teng, X., Wei, W., Dravid, V. P., & Huang, L. (2012). Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film. The journal of physical chemistry C, 116(43), 23036-23040.
Series/Report no.: The journal of physical chemistry C
Abstract: We report the effect of oleic acid-capped magnetic nanoparticles (mNPs, γ-Fe2O3) on the morphology and phase separation behavior of diblock copolymer thin film, polystyrene-b-poly(methyl methacrylate), PS-b-PMMA, under various experimental conditions such as the casting solvent, mNPs concentration, and the annealing time. If chloroform (CHCl3, slightly selective for PMMA) is selected as the casting solvent, the morphologies of the PS-b-PMMA thin film are affected by the embedded mNPs, while there will be no such effect when toluene (slightly selective for PS) is used. In toluene systems, at lower mNP concentration, lateral microphase separation occurred faster than that without mNPs, but at higher concentration, the underlying self-assembled diblock copolymer structure is no longer correlated with the mNPs assembly. Increasing the annealing time of the PS-b-PMMA/mNPs nanocomposite thin film causes a similar effect as that of increasing the concentration of mNPs.
URI: https://hdl.handle.net/10356/99199
http://hdl.handle.net/10220/17101
DOI: 10.1021/jp305827x
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.