Grafting of poly(4-vinylpyridine) to single-walled carbon nanotubes and assembly of multilayer films

被引：133

作者：

Qin, SH

Qin, DQ

Ford, WT ^{[1
]}

Herrera, JE

Resasco, DE

机构：

[1] Oklahoma State Univ, Dept Chem, Stillwater, OK 74078 USA

[2] Univ Oklahoma, Sch Chem Sci & Mat Sci, Norman, OK 73019 USA

来源：

MACROMOLECULES | 2004年 / 37卷 / 26期

关键词：

D O I：

10.1021/ma048692p

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(4-vinylpyridine) grafts to single-walled carbon nanotubes (SWNT) during in situ free radical polymerization of 4-vinylpyridine. After removal of catalyst particles and unattached polymer by centrifugation and ultrafiltration, the SWNT-PVP contains about 63 wt % SWNT by TGA. SWNT-PVP solutions in DMF, methanol, and 2-propanol are stable for at least 8 months. Atomic force microscopy images show individual tubes. Raman spectra are consistent with debundled SWNT having PVP covalently attached. Near-infrared (NIR) spectra show band gap electronic transitions of SWNT. Layer by layer deposition of alternating thin films of SWNT-PVP and poly(acrylic acid) (PAA) adds a constant amount of SWNT-PNT in each bilayer. FTIR spectra of the films show hydrogen bonding between the PVP and the PAA.

引用

页码：9963 / 9967

页数：5

共 34 条

[1] Organic solvent dispersions of single-walled carbon nanotubes: Toward solutions of pristine nanotubes [J].