Surface modification of poly(propylene) by photoinitiators: improvement of adhesion and wettability

P. Castell, M. Wouters, G. With, de, H.R. Fischer, F. Huijs

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Different benzophenone-type photoinitiators were photografted onto poly(propylene) (PP). The polymer surfaces were analyzed by means of contact angle measurements, UV spectroscopy, and FTIR-ATR. The modified samples showed a better wettability and higher surface energies, increasing from 26 mN/m for pure PP to 36 mN/m for the modified samples. The UV spectrum of the modified PP films showed two absorption bands that could be related to the grafted initiator. The effect of irradn. time and photoinitiator concn. was investigated. Different acrylates were grafted efficiently onto the modified polymer surfaces. FTIR-ATR and contact angle measurements confirmed the presence of the grafted chains. The surface energy of the grafted surfaces of samples increased to 70 mN/m, depending on the type of acrylate used.
Original languageEnglish
Pages (from-to)2341-2350
JournalJournal of Applied Polymer Science
Volume92
Issue number4
DOIs
Publication statusPublished - 2004

Fingerprint

Wetting
Surface treatment
Polypropylenes
Adhesion
Angle measurement
Interfacial energy
Propylene
Contact angle
Polymers
Acrylates
Ultraviolet spectroscopy
Absorption spectra
propylene
benzophenone
acrylic acid

Cite this

Castell, P. ; Wouters, M. ; With, de, G. ; Fischer, H.R. ; Huijs, F. / Surface modification of poly(propylene) by photoinitiators: improvement of adhesion and wettability. In: Journal of Applied Polymer Science. 2004 ; Vol. 92, No. 4. pp. 2341-2350.
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Surface modification of poly(propylene) by photoinitiators: improvement of adhesion and wettability. / Castell, P.; Wouters, M.; With, de, G.; Fischer, H.R.; Huijs, F.

In: Journal of Applied Polymer Science, Vol. 92, No. 4, 2004, p. 2341-2350.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Wouters, M.

AU - With, de, G.

AU - Fischer, H.R.

AU - Huijs, F.

PY - 2004

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AB - Different benzophenone-type photoinitiators were photografted onto poly(propylene) (PP). The polymer surfaces were analyzed by means of contact angle measurements, UV spectroscopy, and FTIR-ATR. The modified samples showed a better wettability and higher surface energies, increasing from 26 mN/m for pure PP to 36 mN/m for the modified samples. The UV spectrum of the modified PP films showed two absorption bands that could be related to the grafted initiator. The effect of irradn. time and photoinitiator concn. was investigated. Different acrylates were grafted efficiently onto the modified polymer surfaces. FTIR-ATR and contact angle measurements confirmed the presence of the grafted chains. The surface energy of the grafted surfaces of samples increased to 70 mN/m, depending on the type of acrylate used.

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