Functionalization of the Surface of Poly[bis(trifLuoroethoxy)phosphazene] by Reactions with Alkoxide Nucleophiles

Harry R. Allcock, Richard J. Fitzpatrick, Lawrence Salvati

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Films of poly[bis(trifluoroethoxy)phosphazene], [NP(OCH2CF3)]n, underwent surface reactions when treated with solutions of sodium alkoxides such as Na+−(OCH2CH2)xOH, where x = 1, 2, or 4; Na+−(OCH2CH2)xNH2, where x = 1 or 2; and Na+−OCH2CH2CN. The nucleophiles replaced trifluoroethoxy groups at the polymer surface without detectable side reactions. The modified surfaces were more hydrophilic than the starting material. The presence of the new surface groups was confirmed by contact-angle measurements, SEM, XPS, TEM, and ATR-IR methods. The accessibility of the surface hydroxyl and amino groups to further functionalization was confirmed by the reaction of these groups with phenyl isocyanate.

Original languageEnglish (US)
Pages (from-to)450-454
Number of pages5
JournalChemistry of Materials
Volume3
Issue number3
DOIs
StatePublished - May 1 1991

Fingerprint

Nucleophiles
Surface reactions
Angle measurement
Hydroxyl Radical
Contact angle
Polymers
X ray photoelectron spectroscopy
Sodium
Transmission electron microscopy
Scanning electron microscopy
poly(bis(trifluoroethoxy)phosphazene)

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

@article{8a980315792b4150915cfaafdcd06fd1,
title = "Functionalization of the Surface of Poly[bis(trifLuoroethoxy)phosphazene] by Reactions with Alkoxide Nucleophiles",
abstract = "Films of poly[bis(trifluoroethoxy)phosphazene], [NP(OCH2CF3)]n, underwent surface reactions when treated with solutions of sodium alkoxides such as Na+−(OCH2CH2)xOH, where x = 1, 2, or 4; Na+−(OCH2CH2)xNH2, where x = 1 or 2; and Na+−OCH2CH2CN. The nucleophiles replaced trifluoroethoxy groups at the polymer surface without detectable side reactions. The modified surfaces were more hydrophilic than the starting material. The presence of the new surface groups was confirmed by contact-angle measurements, SEM, XPS, TEM, and ATR-IR methods. The accessibility of the surface hydroxyl and amino groups to further functionalization was confirmed by the reaction of these groups with phenyl isocyanate.",
author = "Allcock, {Harry R.} and Fitzpatrick, {Richard J.} and Lawrence Salvati",
year = "1991",
month = "5",
day = "1",
doi = "10.1021/cm00015a018",
language = "English (US)",
volume = "3",
pages = "450--454",
journal = "Chemistry of Materials",
issn = "0897-4756",
publisher = "American Chemical Society",
number = "3",

}

Functionalization of the Surface of Poly[bis(trifLuoroethoxy)phosphazene] by Reactions with Alkoxide Nucleophiles. / Allcock, Harry R.; Fitzpatrick, Richard J.; Salvati, Lawrence.

In: Chemistry of Materials, Vol. 3, No. 3, 01.05.1991, p. 450-454.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Functionalization of the Surface of Poly[bis(trifLuoroethoxy)phosphazene] by Reactions with Alkoxide Nucleophiles

AU - Allcock, Harry R.

AU - Fitzpatrick, Richard J.

AU - Salvati, Lawrence

PY - 1991/5/1

Y1 - 1991/5/1

N2 - Films of poly[bis(trifluoroethoxy)phosphazene], [NP(OCH2CF3)]n, underwent surface reactions when treated with solutions of sodium alkoxides such as Na+−(OCH2CH2)xOH, where x = 1, 2, or 4; Na+−(OCH2CH2)xNH2, where x = 1 or 2; and Na+−OCH2CH2CN. The nucleophiles replaced trifluoroethoxy groups at the polymer surface without detectable side reactions. The modified surfaces were more hydrophilic than the starting material. The presence of the new surface groups was confirmed by contact-angle measurements, SEM, XPS, TEM, and ATR-IR methods. The accessibility of the surface hydroxyl and amino groups to further functionalization was confirmed by the reaction of these groups with phenyl isocyanate.

AB - Films of poly[bis(trifluoroethoxy)phosphazene], [NP(OCH2CF3)]n, underwent surface reactions when treated with solutions of sodium alkoxides such as Na+−(OCH2CH2)xOH, where x = 1, 2, or 4; Na+−(OCH2CH2)xNH2, where x = 1 or 2; and Na+−OCH2CH2CN. The nucleophiles replaced trifluoroethoxy groups at the polymer surface without detectable side reactions. The modified surfaces were more hydrophilic than the starting material. The presence of the new surface groups was confirmed by contact-angle measurements, SEM, XPS, TEM, and ATR-IR methods. The accessibility of the surface hydroxyl and amino groups to further functionalization was confirmed by the reaction of these groups with phenyl isocyanate.

UR - http://www.scopus.com/inward/record.url?scp=0043109930&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0043109930&partnerID=8YFLogxK

U2 - 10.1021/cm00015a018

DO - 10.1021/cm00015a018

M3 - Article

AN - SCOPUS:0043109930

VL - 3

SP - 450

EP - 454

JO - Chemistry of Materials

JF - Chemistry of Materials

SN - 0897-4756

IS - 3

ER -