Phase separation of polystyrene and bromo-polystyrene mixtures in equilibrium structures in thin films

D. Slep; J. Asselta; M. H. Rafailovich; J. Sokolov; D. A. Winesett; A. P. Smith; H. Ade; Y. Strzhemechny; S. A. Schwarz; B. B. Sauer

doi:10.1021/la9804132

Phase separation of polystyrene and bromo-polystyrene mixtures in equilibrium structures in thin films

D. Slep
, J. Asselta
, M. H. Rafailovich
, J. Sokolov
, D. A. Winesett
, A. P. Smith
, H. Ade
, Y. Strzhemechny
, S. A. Schwarz
, B. B. Sauer

Materials Science and Engineering

Stony Brook University

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

49 Scopus citations

Abstract

Scanning transmission X-ray microscopy (STXM), atomic force microscopy (AFM), and dynamic secondary ion mass spectrometry (DSIMS) were used to obtain the true three-dimensional concentration profiles of polystyrene (PS) and bromo-polystyrene (PBr_x=0.79 where x = fraction of monomers brominated) blend films as a function of PBr_x=0.79S concentration. Upon annealing, it is found that the PBrS becomes encapsulated by the PS. The encapsulation provides for a continuous PS phase for all blend compositions and explains the observed structures that are formed for different PBrS volume fractions. The encapsulation allows us to estimate the dispersive contribution of the PBrS surface energy to be less than 20.6 dyn/cm.

Original language	English
Pages (from-to)	4860-4864
Number of pages	5
Journal	Langmuir
Volume	14
Issue number	17
DOIs	https://doi.org/10.1021/la9804132
State	Published - Aug 18 1998

Access to Document

10.1021/la9804132

Cite this

@article{542f68cc09704b54b22f2ba9c7187416,

title = "Phase separation of polystyrene and bromo-polystyrene mixtures in equilibrium structures in thin films",

abstract = "Scanning transmission X-ray microscopy (STXM), atomic force microscopy (AFM), and dynamic secondary ion mass spectrometry (DSIMS) were used to obtain the true three-dimensional concentration profiles of polystyrene (PS) and bromo-polystyrene (PBrx=0.79 where x = fraction of monomers brominated) blend films as a function of PBrx=0.79S concentration. Upon annealing, it is found that the PBrS becomes encapsulated by the PS. The encapsulation provides for a continuous PS phase for all blend compositions and explains the observed structures that are formed for different PBrS volume fractions. The encapsulation allows us to estimate the dispersive contribution of the PBrS surface energy to be less than 20.6 dyn/cm.",

author = "D. Slep and J. Asselta and Rafailovich, \{M. H.\} and J. Sokolov and Winesett, \{D. A.\} and Smith, \{A. P.\} and H. Ade and Y. Strzhemechny and Schwarz, \{S. A.\} and Sauer, \{B. B.\}",

year = "1998",

month = aug,

day = "18",

doi = "10.1021/la9804132",

language = "English",

volume = "14",

pages = "4860--4864",

journal = "Langmuir",

issn = "0743-7463",

number = "17",

}

TY - JOUR

T1 - Phase separation of polystyrene and bromo-polystyrene mixtures in equilibrium structures in thin films

AU - Slep, D.

AU - Asselta, J.

AU - Rafailovich, M. H.

AU - Sokolov, J.

AU - Winesett, D. A.

AU - Smith, A. P.

AU - Ade, H.

AU - Strzhemechny, Y.

AU - Schwarz, S. A.

AU - Sauer, B. B.

PY - 1998/8/18

Y1 - 1998/8/18

N2 - Scanning transmission X-ray microscopy (STXM), atomic force microscopy (AFM), and dynamic secondary ion mass spectrometry (DSIMS) were used to obtain the true three-dimensional concentration profiles of polystyrene (PS) and bromo-polystyrene (PBrx=0.79 where x = fraction of monomers brominated) blend films as a function of PBrx=0.79S concentration. Upon annealing, it is found that the PBrS becomes encapsulated by the PS. The encapsulation provides for a continuous PS phase for all blend compositions and explains the observed structures that are formed for different PBrS volume fractions. The encapsulation allows us to estimate the dispersive contribution of the PBrS surface energy to be less than 20.6 dyn/cm.

AB - Scanning transmission X-ray microscopy (STXM), atomic force microscopy (AFM), and dynamic secondary ion mass spectrometry (DSIMS) were used to obtain the true three-dimensional concentration profiles of polystyrene (PS) and bromo-polystyrene (PBrx=0.79 where x = fraction of monomers brominated) blend films as a function of PBrx=0.79S concentration. Upon annealing, it is found that the PBrS becomes encapsulated by the PS. The encapsulation provides for a continuous PS phase for all blend compositions and explains the observed structures that are formed for different PBrS volume fractions. The encapsulation allows us to estimate the dispersive contribution of the PBrS surface energy to be less than 20.6 dyn/cm.

UR - https://www.scopus.com/pages/publications/0032135901

U2 - 10.1021/la9804132

DO - 10.1021/la9804132

M3 - Article

SN - 0743-7463

VL - 14

SP - 4860

EP - 4864

JO - Langmuir

JF - Langmuir

IS - 17

ER -

Phase separation of polystyrene and bromo-polystyrene mixtures in equilibrium structures in thin films

Abstract

Access to Document

Other files and links

Fingerprint

Cite this