Surface modification of poly(epsilon-caprolactone) using a dielectric barrier discharge in atmospheric pressure glow discharge mode.
The role of roughening and functionalization processes involved in modifying the wettability of poly(epsilon-caprolactone) (PCL) after treatment by an atmospheric pressure glow discharge plasma is discussed. The change in the ratio of CO/C-O bonds is a significant factor influencing the wettability of PCL. As the contact angle decreases, the level of CO bonds tends to rise. Surface roughness alterations are the driving force for lasting increases in wettability, while the surface functional species are shorter lived. We can approximate from ageing that the increase in wettability for PCL after plasma treatment is 55-60% due to roughening and 40-45% due to surface functionalization for the plasma device investigated.
Little
Uel
U
Queen's University Belfast, Co. Antrim, N. Ireland, UK.
Buchanan
Fraser
F
Harkin-Jones
Eileen
E
Graham
Bill
B
Fox
Brendan
B
Boyd
Adrian
A
Meenan
Brian
B
Dickson
Glenn
G
D001274:Atmospheric Pressure; D001672:Biocompatible Materials / Q000737:chemistry*; D003460:Crystallization / Q000379:methods; D017097:Electric Impedance; D005740:Gases / Q000737:chemistry; D006358:Hot Temperature; D008422:Materials Testing; D011091:Polyesters / Q000737:chemistry*; D055672:Static Electricity; D013499:Surface Properties
D001672:Biocompatible Materials; D005740:Gases; D011091:Polyesters; C016240:polycaprolactone