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Mapping chemically heterogeneous polymer system using selective chemical reaction and tapping mode atomic force microscopy
Author(s) -
Raghavan D.,
Gu X.,
VanLandingham M.,
Nguyen T.
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200103)167:1<297::aid-masy297>3.0.co;2-2
Subject(s) - atomic force microscopy , polymer , tapping , materials science , chemical engineering , matrix (chemical analysis) , fourier transform infrared spectroscopy , chemical modification , chemical reaction , chemical imaging , nanotechnology , polymer chemistry , chemistry , composite material , organic chemistry , remote sensing , management , hyperspectral imaging , geology , engineering , economics
The mapping of chemically heterogeneous regions in PEA/PS film was achieved by reacting the film in a low pH environment and analyzing by AFM. In 70:30 blend, the domains were identified as PS rich regions and matrix as the PEA rich regions, based on AFM images, FTIR measurements, and chemical modification study. During the course of hydrolysis of PEA, pits were formed in isolated regions of the matrix, as characterized by AFM.