Page 209 - Handbook of Adhesion Promoters

202 Selection of Adhesion Promoters for Different

9.20 MEDICAL

Ionomers such as Amplify IO 3701 & 3801 are proposed as adhesion promoters for medi-
cal applications.
Hydrophilic adhesion promoters that facilitate intimate binding between metals and
1
polymers are used in biomedical coatings. The adhesion promoters based on linear polyg-
1
lycidol are useful in biomedical applications. They contain phosphonic acid and acrylate
1
groups.
Parylene C is biocompatible material and it is frequently used in medical applica-
2
tions. Its poor adhesion in the harsh environments can be improved by a combination of
2
KOH etching and the use of 3-methacryloxypropyltrimethoxysilane.
Iridium oxide was used as an adhesion promoter between poly(3,4-ethylenedioxythi-
3
ophene) and polyimide in medical applications. Figure 8.6 shows the mechanism of adhe-
3
sion.
The medical devices comprise both polyorganosiloxane and polyphosphazene com-
pounds which reduce cell encrustation on the device and reduce the severity of thrombosis
when the devices are in contact with body fluids, and impart anti-rejection properties to
4
the device.
REFERENCES
1 Koehler, J; Kuehne, AJC; Piermattei, A; Qiu, J; Keul, HA; Dirks, T; Keul, H; Moeller, M, J. Mater.
Chem. B, 3, 804-13, 2015.
2 Charmet, J; Bitterli, J; Sereda, O; Liley, M; Renaud, P; Keppner, H, J. Microelectrochim. Systems, 22, 4,
855-64, 2013.
3 Boehler, C; Oberueber, F; Schlabach, S; Stieglitz, T; Asplund, M, ACS Appl. Mater. Interfaces, 9, 189-97,
2017.
4 Gordy, T; Ung, N; Fritz, U; Fritz, O; Wojcik, R, US20080095816, Celanova Biosciences, Inc., Apr. 24,
2008.