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Surface‐initiated ring‐opening polymerization of ϵ‐caprolactone from the surface of PP film
Author(s) -
Sui Yuan,
Zhao Jingbo,
Gan Shenghua,
Zhao Hongchi,
Yang Wantai
Publication year - 2007
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.24746
Subject(s) - x ray photoelectron spectroscopy , polymerization , attenuated total reflection , scanning electron microscope , fourier transform infrared spectroscopy , materials science , polymer chemistry , caprolactone , ring opening polymerization , contact angle , layer (electronics) , chemical engineering , composite material , polymer , engineering
This article presents the ring‐opening polymerization of ε‐caprolactone (ε‐CL) from PP film modified with an initiator layer composed of OSn(Oct) groups. This method consists of two steps: (1) Sn(Oct) 2 exchanged with the hydroxyl groups on the surface of PP film, forming the OSn(Oct) groups bonded on the surface; (2) surface‐initiated ring‐opening polymerization of ε‐CL with the OSn(Oct) groups. The initiator layer is characterized by attenuated total reflectance‐Fourier transform infrared (ATR‐FTIR), contact angles, and X‐ray photoelectron spectroscopy (XPS). The growth of PCL chains from the initiator layer through ring‐opening polymerization is successfully achieved. ATR‐FTIR, XPS, and scanning electron microscope (SEM) are also used to characterize the grafted film. XPS results reveal that the PCL chains cover the surface of PP film after 4 h. The SEM images reveal that the PCL chain clusters grow into regular spheroidal particles, which can be changed into other different morphology by treated with different solvents. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007