SURFACE STUDIES OF POLY(ORGANOPHOSPHAZENES) CONTAINING DIMETHYLSILOXANE GRAFTS

被引：17

作者：

ALLCOCK, HR

SMITH, DE

机构：

[1] Department of Chemistry, The Pennsylvania State University, University Park

来源：

CHEMISTRY OF MATERIALS | 1995年 / 7卷 / 08期

关键词：

D O I：

10.1021/cm00056a011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 allyl-functional polymer and heptamethyltrisiloxane dissolved in nonsolvents for the polymer. Polymer films showed the presence of silicon to depths of 25-60 mu m as measured by energy-dispersive X-ray spectroscopy.

引用

页码：1469 / 1474

页数：6

共 40 条

[1]

Allcock H. R., 1992, J INORG ORGANOMET PO, V2, P197

[2] ORGANOSILOXYPHOSPHAZENE POLYMERS - SYNTHESIS VIA AMINOSILOXANE REAGENTS [J].