Abstract
Surface bromination of low-density polyethylene (LDPE) was carried out by brief exposure to gaseous bromine followed by UV irradiation. X-ray photoelectron spectroscopy suggests two different types of C-Br groups. Atomic force microscopy and wetting studies reveal that excessive bromination is accompanied by severe surface roughening. A nucleophilic substitution reaction was used to introduce surface 4-aminobenzenethiolate functionalities. UV spectral analysis indicates a grafting density of 2.9 bromine atoms per 100 angstroms2 for the first bromination cycle.
Original language | English |
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Pages (from-to) | 2089-2094 |
Number of pages | 6 |
Journal | Langmuir |
Volume | 15 |
Issue number | 6 |
DOIs | |
State | Published - 16 Mar 1999 |
Externally published | Yes |