Photo-crosslinking polymers

Inoue, K., Komatsu, S., Trinh, X. A., Norisuye, T. and Tran-Cong-Miyata, Q. (2005) Local deformation in photo-crosslinked polymer blends monitored by Mach-Zehnder interferometry. J. Polym. Sci. Part B Polym. Phys., 43, 2898-2913. 

Y. Zhang, R. Hreha, G. Jabbour, B. Kippelen, N. Peyghambarian, and S.R. Marder, Photo-crosslinkable polymers as hole-transport materials for organic light-emitting diodes, J. Mater. Chem., 12 1703-1708 (2002). 

A wide variety of methods exist for the immobilisation of enzymes on a sensor surface. Screen-printed carbon electrodes are often the favourite base for these sensors due to their inexpensiveness and ease of mass production. Methods used for the construction of AChE-containing electrodes include simple adsorption from solution [22], entrapment within a photo-crosslinkable polymer [20,23], adsorption from solution onto microporous carbon and incorporation into a hydroxyethyl cellulose membrane [24], binding to a carbon electrode via Concanavalin A affinity [25,26] and entrapment within conducting electrodeposited polymers [27]. 

The thermally and photo- crosslinking polymers (4) offer probably the Frontiers of Polymers and Advanced Materials... 

Fukumoto H, Nagano S, Kawatsuki N, Seki T. 2005. Photo orientation of mesoporous silica thin films on photo crosslinkable polymer film. Adv Mater 17 1035 1039. 

G. Delzenne, Recent advances in photo-crosslinkable polymers. Revs, Polym. Technol 1, 185 (1972). 

Table 4 gives some mechanical and electrical data of such photo-crosslinked polymers. The crosslinking was carried out by 5-9 min. UV-irradiation with a 5 kW mercury lamp... 

JamaL M. Zarafshar, A. M. Gracias, D. H. Differentially photo-crosslinked polymers enable self-assembling microfluidics. Nat. Commun. 2011, 2, 527, 1-6. 

The mechanism of pattern formation in photo-crosslinked polymer blends is not completely understood. Besides the competition between phase separation and photo-crosslinking reactions, elastic stress in the sample due to network formation, as well as an autocatalytic feedback arising from concentration fluctuations amplified by the crosslinking reaction, may play an important role in these ordering processes. 

Nematic photo-crosslinkable polymers [108] and reactive monomer mixtures [109] can be easily oriented in a magnetic field. Due to their diamagnetism the mesogens usually orient parallel to the magnetic field in the LC phase. 

Photopolymers These are photoinitiated and photo-crosslinked polymers e.g., photoresists, printing inks, can coatings, etc. (Fouassier J-P (1995) Photoinitiation, photopolymerization and photocuring. Hanser-Gardner, New York Printing ink manual, 5th edn. Leach RH, Pierce RJ, Hickman EP, Mackenzie MJ, Smith HG (eds). Blueprint, New York, 1993)... 

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