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SYNTHESIS AND CHARACTERIZATION OF POLY(PHTHALAZINONE ETHER NITRILE) COPOLYMERS WITH HYDROPHOBIC SURFACE

L. M. DONG

Department of Polymer Science and Materials, Dalian University of Technology, Dalian 116012, China

Xi'an Modern Chemistry Research Institute, Xi'an 710065, China

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G. X. LIAO

Department of Polymer Science and Materials, Dalian University of Technology, Dalian 116012, China

Xi'an Modern Chemistry Research Institute, Xi'an 710065, China

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C. LIU

Department of Polymer Science and Materials, Dalian University of Technology, Dalian 116012, China

Xi'an Modern Chemistry Research Institute, Xi'an 710065, China

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S. S. YANG

Department of Polymer Science and Materials, Dalian University of Technology, Dalian 116012, China

Xi'an Modern Chemistry Research Institute, Xi'an 710065, China

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, and

X. G. JIAN

Department of Polymer Science and Materials, Dalian University of Technology, Dalian 116012, China

Xi'an Modern Chemistry Research Institute, Xi'an 710065, China

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https://doi.org/10.1142/S0218625X08011731Cited by:2 (Source: Crossref)

Abstract

Poly(phthalazinone ether nitrile) (PPEN) block copolymers containing polysiloxane were prepared so as to create a strongly hydrophobic polymer surface. The copolymers were synthesized from eugenol end-capped polydimethylsiloxane (PDMS) and fluoro-terminated PPEN oligomers by the aromatic nucleophilic substitution polycondensation in the presence of dimethyl sulfoxide/o-dichlorobenzene and K₂CO₃ as solvents and catalyst, respectively. The resultant copolymers were characterized by FTIR, ¹H NMR, and gel permeation chromatography. XPS analysis results indicated that the copolymer film had a very rich PDMS segment surface. Atomic force microscopy further showed that there existed a continuous PDMS phase on the copolymer surface and PPEN as the dispersive particles was dispersed at diameters between 0.1 and 0.3 nm. The enrichment of PDMS in the copolymer surface could be responsible for an increase of surface water repellency (113.4°).

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