Surface Studies of Poly(organophosphazenes) Containing Dimethylsiloxane Grafts

Harry R. Allcock; Dawn E. Smith

doi:10.1021/cm00056a011

Surface Studies of Poly(organophosphazenes) Containing Dimethylsiloxane Grafts

Harry R. Allcock, Dawn E. Smith

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20 Scopus citations

Abstract

Poly(organophosphazenes) containing dimethylsiloxane grafts were synthesized by carrying out hydrosilylation reactions on polymer precursors that contained unsaturated side groups. The surface properties of the siloxane-containing polymers were studied by contact-angle measurements and X-ray photoelectron spectroscopy. A cosubstituent poly(organophosphazene) containing both trifluoroethoxy side groups and grafted dimethylsiloxane side groups was found to have a surface rich in -CF₃ groups. A poly(organophosphazene) with siloxane grafts but phenoxy groups as the second substituent showed surface enrichment of the siloxane species. Surface-specific hydrosilylation reactions were detected between an allylfunctional polymer and heptamethyltrisiloxane dissolved in nonsolvents for the polymer. Polymer films showed the presence of silicon to depths of 25-60µm as measured by energydispersive X-ray spectroscopy.

Original language	English (US)
Pages (from-to)	1469-1474
Number of pages	6
Journal	Chemistry of Materials
Volume	7
Issue number	8
DOIs	https://doi.org/10.1021/cm00056a011
State	Published - Aug 1995

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
Materials Chemistry

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@article{e0986453cce14fe9a5988e3f4bf3188f,

title = "Surface Studies of Poly(organophosphazenes) Containing Dimethylsiloxane Grafts",

abstract = "Poly(organophosphazenes) containing dimethylsiloxane grafts were synthesized by carrying out hydrosilylation reactions on polymer precursors that contained unsaturated side groups. The surface properties of the siloxane-containing polymers were studied by contact-angle measurements and X-ray photoelectron spectroscopy. A cosubstituent poly(organophosphazene) containing both trifluoroethoxy side groups and grafted dimethylsiloxane side groups was found to have a surface rich in -CF3 groups. A poly(organophosphazene) with siloxane grafts but phenoxy groups as the second substituent showed surface enrichment of the siloxane species. Surface-specific hydrosilylation reactions were detected between an allylfunctional polymer and heptamethyltrisiloxane dissolved in nonsolvents for the polymer. Polymer films showed the presence of silicon to depths of 25-60µm as measured by energydispersive X-ray spectroscopy.",

author = "Allcock, {Harry R.} and Smith, {Dawn E.}",

year = "1995",

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doi = "10.1021/cm00056a011",

language = "English (US)",

volume = "7",

pages = "1469--1474",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Surface Studies of Poly(organophosphazenes) Containing Dimethylsiloxane Grafts

AU - Allcock, Harry R.

AU - Smith, Dawn E.

PY - 1995/8

Y1 - 1995/8

N2 - Poly(organophosphazenes) containing dimethylsiloxane grafts were synthesized by carrying out hydrosilylation reactions on polymer precursors that contained unsaturated side groups. The surface properties of the siloxane-containing polymers were studied by contact-angle measurements and X-ray photoelectron spectroscopy. A cosubstituent poly(organophosphazene) containing both trifluoroethoxy side groups and grafted dimethylsiloxane side groups was found to have a surface rich in -CF3 groups. A poly(organophosphazene) with siloxane grafts but phenoxy groups as the second substituent showed surface enrichment of the siloxane species. Surface-specific hydrosilylation reactions were detected between an allylfunctional polymer and heptamethyltrisiloxane dissolved in nonsolvents for the polymer. Polymer films showed the presence of silicon to depths of 25-60µm as measured by energydispersive X-ray spectroscopy.

AB - Poly(organophosphazenes) containing dimethylsiloxane grafts were synthesized by carrying out hydrosilylation reactions on polymer precursors that contained unsaturated side groups. The surface properties of the siloxane-containing polymers were studied by contact-angle measurements and X-ray photoelectron spectroscopy. A cosubstituent poly(organophosphazene) containing both trifluoroethoxy side groups and grafted dimethylsiloxane side groups was found to have a surface rich in -CF3 groups. A poly(organophosphazene) with siloxane grafts but phenoxy groups as the second substituent showed surface enrichment of the siloxane species. Surface-specific hydrosilylation reactions were detected between an allylfunctional polymer and heptamethyltrisiloxane dissolved in nonsolvents for the polymer. Polymer films showed the presence of silicon to depths of 25-60µm as measured by energydispersive X-ray spectroscopy.

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JO - Chemistry of Materials

JF - Chemistry of Materials

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ER -

Surface Studies of Poly(organophosphazenes) Containing Dimethylsiloxane Grafts

Abstract

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