Hits:

Indexed by:期刊论文

Date of Publication:2008-10-01

Journal:SURFACE REVIEW AND LETTERS

Included Journals:SCIE、EI、Scopus

Volume:15

Issue:5

Page Number:705-709

ISSN No.:0218-625X

Key Words:Block copolymers; Poly(phthalazinone ether nitrile)s; hydrophobic modification; polydimethylsiloxane

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, H-1 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 degrees).