Surface modification of and adhesion to polystyrene
Ting-Ting Ng
2134/34260
https://repository.lboro.ac.uk/articles/thesis/Surface_modification_of_and_adhesion_to_polystyrene/9230534
Polystyrene (PS) is a non-polar polymer that has limited surface properties since it
lacks polar functional groups. In this project, different polar functional groups were
incorporated onto PS by various methods such as surface treatments (flame
treated and chromic acid treated), non-reactive and reactive compounding (at
different loadings of copolymers) and grafting of copolymer chains induced by UV
irradiation. These functional groups, namely carboxylic acid, hydroxyl, styrene
maleic anhydride (compounded and grafted) and poly(vinyl methyl ether) (PVME),
introduced during treatment and modification of PS, may diffuse away from the
surface into the bulk and vice versa.
The treated and modified surfaces were investigated and compared using a range
of surface analysis techniques, which include X-ray photoelectron spectroscopy
(XPS), attenuated total reflection infrared spectroscopy (ATR-IR), atomic force
microscopy (AFM) and contact angle measurement in conjunction with chemical
derivatisation. [Continues.]
2018-08-02 08:54:32
untagged
Materials Engineering not elsewhere classified