Shortened single-walled nanotubes functionalized with poly(ethylene glycol): preparation and properties.

被引：17
|
作者：
Menna, E [1 ]
Scorrano, G
Maggini, M
Cavallaro, M
Della Negra, F
Battagliarin, M
Bozio, R
Fantinel, F
Meneghetti, M
机构：
[1] Univ Padua, Dipartimento Chim Organ, ITM CNR, Sez Padova, Via Marzolo 1, I-35131 Padua, Italy
[2] Univ Venice, Dipartimento Chim Fis, I-30170 Venice, Mestre, Italy
[3] Univ Padua, Dipartimento Chim Fis, I-35131 Padua, Italy
来源：
ARKIVOC | 2003年
关键词：
carbon nanotubes; optical limiting; polyethylene-glycol; dissolution;
D O I：
10.3998/ark.5550190.0004.c08
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Poly(ethylene glycol) ( PEG) was grafted to shortened single-walled carbon nanotubes (sh-SWNTs) obtained from original SWNTs after acid oxidative cutting and etching processes. PEG-sh-SWNTs, prepared by treating the sh-SWNTs with SOCl2 followed by amidation with PEG-monoamine (molecular weight = 2000), are moderately soluble in tetrahydrofuran, chlorinated hydrocarbons (ca. 1 mg/ml), sparingly soluble in water, acetone CH3OH and insoluble in non polar solvents such as toluene, hexanes or carbon disulfide. Non linear transmission measurements on solutions of PEG-sh-SWNTs in CHCl3 showed a better optical limiting performance relative to that recorded for original SWNTs suspended in the same solvent.
引用
收藏
页码：64 / 73
页数：10
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