Surface Study of Diblock Copolymers of Poly(dimethylsiloxane) and Nylon-6 by Electron Spectroscopy for Chemical Analysis

Xin Chen; Joseph A. Gardella; Robert E. Cohen

doi:10.1021/ma00086a034

Surface Study of Diblock Copolymers of Poly(dimethylsiloxane) and Nylon-6 by Electron Spectroscopy for Chemical Analysis

Xin Chen
, Joseph A. Gardella
, Robert E. Cohen

Chemistry

SUNY Buffalo
Massachusetts Institute of Technology

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

Surface composition of solution-cast films of diblock copolymers of poly(dimethylsiloxane) (PDMS) and nylon-6 was measured by using angle-dependent ESCA. Segregation of PDMS in the free surface region of the block copolymers was detected. The surface composition of these amorphoussemicrystalline block copolymers depends on both their polymer structure and the way the films are prepared. Mixed solvents can be used to control the competition between crystallization and microphase separation and, eventually, to adjust the surface composition of the solution-cast films. Annealing of the solution-cast films drives more PDMS into the surface region. The surface region comprised of the topmost 100 Å of the annealed films is pure PDMS for the PDMS-nylon-6 copolymer with a longer PDMS block length (202 repeat units) and a higher PDMS bulk concentration (34 mol %).

Original language	English
Pages (from-to)	2206-2210
Number of pages	5
Journal	Macromolecules
Volume	27
Issue number	8
DOIs	https://doi.org/10.1021/ma00086a034
State	Published - Apr 1 1994

Access to Document

10.1021/ma00086a034

Cite this

@article{4e4eec5087be4560a3ecc18f9051788b,

title = "Surface Study of Diblock Copolymers of Poly(dimethylsiloxane) and Nylon-6 by Electron Spectroscopy for Chemical Analysis",

abstract = "Surface composition of solution-cast films of diblock copolymers of poly(dimethylsiloxane) (PDMS) and nylon-6 was measured by using angle-dependent ESCA. Segregation of PDMS in the free surface region of the block copolymers was detected. The surface composition of these amorphoussemicrystalline block copolymers depends on both their polymer structure and the way the films are prepared. Mixed solvents can be used to control the competition between crystallization and microphase separation and, eventually, to adjust the surface composition of the solution-cast films. Annealing of the solution-cast films drives more PDMS into the surface region. The surface region comprised of the topmost 100 {\AA} of the annealed films is pure PDMS for the PDMS-nylon-6 copolymer with a longer PDMS block length (202 repeat units) and a higher PDMS bulk concentration (34 mol \%).",

author = "Xin Chen and Gardella, \{Joseph A.\} and Cohen, \{Robert E.\}",

year = "1994",

month = apr,

day = "1",

doi = "10.1021/ma00086a034",

language = "English",

volume = "27",

pages = "2206--2210",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

number = "8",

}

TY - JOUR

T1 - Surface Study of Diblock Copolymers of Poly(dimethylsiloxane) and Nylon-6 by Electron Spectroscopy for Chemical Analysis

AU - Chen, Xin

AU - Gardella, Joseph A.

AU - Cohen, Robert E.

PY - 1994/4/1

Y1 - 1994/4/1

N2 - Surface composition of solution-cast films of diblock copolymers of poly(dimethylsiloxane) (PDMS) and nylon-6 was measured by using angle-dependent ESCA. Segregation of PDMS in the free surface region of the block copolymers was detected. The surface composition of these amorphoussemicrystalline block copolymers depends on both their polymer structure and the way the films are prepared. Mixed solvents can be used to control the competition between crystallization and microphase separation and, eventually, to adjust the surface composition of the solution-cast films. Annealing of the solution-cast films drives more PDMS into the surface region. The surface region comprised of the topmost 100 Å of the annealed films is pure PDMS for the PDMS-nylon-6 copolymer with a longer PDMS block length (202 repeat units) and a higher PDMS bulk concentration (34 mol %).

AB - Surface composition of solution-cast films of diblock copolymers of poly(dimethylsiloxane) (PDMS) and nylon-6 was measured by using angle-dependent ESCA. Segregation of PDMS in the free surface region of the block copolymers was detected. The surface composition of these amorphoussemicrystalline block copolymers depends on both their polymer structure and the way the films are prepared. Mixed solvents can be used to control the competition between crystallization and microphase separation and, eventually, to adjust the surface composition of the solution-cast films. Annealing of the solution-cast films drives more PDMS into the surface region. The surface region comprised of the topmost 100 Å of the annealed films is pure PDMS for the PDMS-nylon-6 copolymer with a longer PDMS block length (202 repeat units) and a higher PDMS bulk concentration (34 mol %).

UR - https://www.scopus.com/pages/publications/0028405672

U2 - 10.1021/ma00086a034

DO - 10.1021/ma00086a034

M3 - Article

AN - SCOPUS:0028405672

SN - 0024-9297

VL - 27

SP - 2206

EP - 2210

JO - Macromolecules

JF - Macromolecules

IS - 8

ER -

Surface Study of Diblock Copolymers of Poly(dimethylsiloxane) and Nylon-6 by Electron Spectroscopy for Chemical Analysis

Abstract

Access to Document

Other files and links

Fingerprint

Cite this