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FT‐IR spectroscopic investigations of photochemical grafting of amphiphiles onto polyacrylonitrile surfaces
Author(s) -
Böhme Peter,
Hicke HansGeorg,
Ulbricht Mathias,
Fuhrhop JürgenHinrich
Publication year - 1995
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1995.070551101
Subject(s) - polyacrylonitrile , chloroform , amphiphile , tetrahydrofuran , contact angle , polymer chemistry , materials science , photochemistry , infrared spectroscopy , grafting , azide , absorption spectroscopy , chemistry , organic chemistry , copolymer , solvent , optics , polymer , composite material , physics
The photoreactive amphiphile p ‐(stearyl amido) benzoyl azide (SABAz) was synthesized and grafted onto surface of thin polyacrylonitrile (PAN) films by irradiation with UV light. Two different techniques were applied, namely, Langmuir–Blodgett (LB) deposition and casting from solution. A high degree of order and a hydrophobic surface were established by reflection‐absorption FT‐IR spectroscopy (RA‐IR) and contact angle measurements. The stability against treatment with water, tetrahydrofuran, and chloroform was tested. A considerable amount of amphiphilic molecules remains on the surface also after treatment with chloroform. RA‐IR spectra taken from photomodified PAN films prepared by both techniques are almost identical after chloroform treatment, indicating a similar coupling mechanism. © 1995 John Wiley & Sons, Inc.