期刊
APPLIED SURFACE SCIENCE
卷 255, 期 9, 页码 5088-5091出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2008.11.046
关键词
Nanotube; Hydroxyl group content; Polymer; Surface modification; In situ template
Novel polyphosphazene nanotubes with active hydroxyl groups were fabricated via an in situ template approach under ultrasonic irradiation. SEM and TEM results indicated that the nanotubes were uniform with length of several micrometers, inner diameter of ca. 20 nm and outer diameter of 60-80 nm. FTIR spectra revealed that the content of the hydroxyl groups on the nanotube surface was dependent on the feed ratio of hexachlorocyclotriphosphazene (HCCP) to 4,4'-sulfonyldiphenol. The successful esterification of polymer nanotubes with benzoxy chloride demonstrated the high reactivity of the hydroxyl groups. The method employed here might provide a simple and effective way to prepare functional nanotubes used for biological applications. (c) 2008 Elsevier B.V. All rights reserved.
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