Properties of Polystyrene-Polydimethylsiloxane Block Copolymers

Saam, John C.; Fearon, F. W. G.

doi:10.1021/i360037a003

Cited by 36 publications

(26 citation statements)

References 8 publications

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“…20,27,28 In the following discussion, different thermal annealing is used to study the thermal equilibrium of the surface morphology of the PS-b-PDMS copolymer thin films.…”

Section: Morphology Of the Annealed Filmsmentioning

confidence: 99%

“…[17][18][19] Although the morphology of PS-b-PDMS copolymers has been studied with TEM and small-angle X-ray scattering methods, [20][21][22][23] the surface morphologies of PS-b-PDMS copolymer thin films have been seldom systematically reported by atomic force microscopy (AFM) observation. In this work, we investigate the formation and morphology of immiscible PS-b-PDMS copolymer thin films.…”

Section: Introductionmentioning

confidence: 99%

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Morphology of poly(styrene‐block‐dimethylsiloxane) copolymer films

Zheng

Huang

et al. 2007

J of Applied Polymer Sci

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The morphologies of poly(styrene-block-dimethylsiloxane) (PS-b-PDMS) copolymer thin films were analyzed via atomic force microscopy and transition electron microscopy (TEM). The asymmetric copolymer thin films spin-cast from toluene onto mica presented meshlike structures, which were different from the spherical structures from TEM measurements. The annealing temperature affected the surface morphology of the PS-b-PDMS copolymer thin films; the polydimethylsiloxane (PDMS) phases at the surface were increased when the annealing temperature was higher than the PDMS glass-transition temperature. The morphologies of the PS-b-PDMS copolymer thin films were different from solvent to solvent; for thin films spin-cast from toluene, the polystyrene (PS) phase appeared as pits in the PDMS matrix, whereas the thin films spin-cast from cyclohexane solutions exhibited an islandlike structure and small, separated PS phases as protrusions over the macroscopically flat surface. The microphase structure of the PS-b-PDMS copolymer thin films was also strongly influenced by the different substrates; for an asymmetric block copolymer thin film, the PDMS and PS phases on a silicon substrate presented a lamellar structure parallel to the surface at intervals.

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“…20,27,28 In the following discussion, different thermal annealing is used to study the thermal equilibrium of the surface morphology of the PS-b-PDMS copolymer thin films.…”

Section: Morphology Of the Annealed Filmsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Morphology of poly(styrene‐block‐dimethylsiloxane) copolymer films

Zheng

Huang

et al. 2007

J of Applied Polymer Sci

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show abstract

“…Similar results may be achieved with α-methylstyrene as the block hard phase [245][246][247]. Polydimethylsiloxane may be employed as the block soft phase [245,248], improving thermooxidative stability.…”

Section: B Block Copolymersmentioning

confidence: 53%

Elastomer Blends

Corish¹

1978

Science &Amp; Technology of Rubber

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“…Electron microscopy studies (192,193) on these ^A-B-A) n copoly-mers indicated that morphology did not change over a broad range of composition. The use of solvents that selectively solvate either of the blocks gave cast films of 50% siloxane content, which showed better definition of the microphases than was obtained with nonselective solvents, but gross changes in morphology were not observed.…”

Section: Scheme 7-19mentioning

confidence: 95%

“…7-28, which was obtained by torsional braid analysis (192). 7-28, which was obtained by torsional braid analysis (192).…”

Section: Scheme 7-19mentioning

confidence: 99%