Premium
Polyacrylonitrile‐Derived 1D Carbon Structures via Template Wetting and Electrospinning
Author(s) -
Khanderi Jayaprakash,
Schneider Jörg J.
Publication year - 2009
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200900032
Subject(s) - polyacrylonitrile , thermogravimetric analysis , materials science , chemical engineering , acrylonitrile , curing (chemistry) , pyrolysis , polymerization , polymer chemistry , charring , x ray photoelectron spectroscopy , elemental analysis , atmospheric temperature range , thermal analysis , composite material , polymer , chemistry , organic chemistry , thermal , copolymer , physics , meteorology , engineering
In‐situ polymerisation of acrylonitrile as well as a DMF solution‐phase impregnation of polyacrylonitrile, PAN, in porous aluminium oxide templates (PAOX) to synthesise 2D arranged carbon nanotubes with diameters in the range of 40–200 nm were studied. The preparation of graphitised carbon tubes from polyacrylonitrile consists of two steps, first a low‐temperature crosslinking of aromatic ring units at 250 °C, which is followed by a stepwise high‐temperature pyrolysis (carbonisation) in an inert atmosphere in the temperature range between 600–1100 °C. Finally, a graphitisation step was carried out at high temperature above 1500 °C, which however leads to a complete collapse of the structure due to a solid‐state reaction between the template and the PAN infiltrated in the template pores. X‐ray diffraction of the carbonised PAN tubes in PAOX indicates no graphitisation up to curing temperatures of 750 °C. The process of PAN loading and subsequent polymerisation by thermal curing within PAOX was followed by IR and UV/Vis spectroscopy, thermogravimetric analysis coupled with mass spectrometry (TGA/MS), XPS spectroscopy as well as combustion analysis. The presence of nitrogen in the final carbonised product was determined.