Photo-induced crosslinking

Kord B (2011) Nanofiller reinforcement effects on the thermal, d5mamic mechanical and morphological behavior of HDPE/rice husk flour composites. BioResources 6 1351-1358 Kumar AP, Singh RP (2008) Biocomposites of cellulose reinforced starch Improvement of properties by photo-induced crosslinking. Bioresour Technol 99 8803-8809... 

C. Croutxe-Barghom, O. Soppera, and D. J. Lougnot, "Fabrication of microlenses by direct photo-induced crosslinking polymerization," Applied Surface Science, vol. 168, pp. 89-91, Dec 2000. 

Instead of using thermal energy to trigger the hydrogen abstraction mechanism, photo-induced reactions can be also be used to successfully crosslink acrylic PSAs [74-76], In this case, photoactive compounds, such as for example those containing benzophenone, anthraquinone or triazine nuclei are compounded with the polymer or copolymerized as one of the monomers. After drying, the adhesive... 

HeLa, embryonic mouse fibroblasts, human epithelial cells pCP of proteins or PEG, photo- patterning through light-induced crosslinking of FN-benzophenone 2007 [89]... 

Craig IH, White JR, Shyichuk AV, Syrotynska I. Photo-induced scission and crosslinking in LDPE, LLDPE, and HDPE. Polym Eng Sci 2005 3 579-587. 

Thanks to their high polymerizability, low-shrinkage level, low-toxicity and low volatility, telechelic vinylether-based resins appear to be an attractive alternative to aerylate UV-cured systems suitable for various applications, and in particular as protective coatings. Moreover, a broad range of vinylether compounds are now commercially available. Indeed, in the past few years, thermal and photo-induced cationic crosslinking polymerization of simple eommercial divinylethers have been thoroughly studied in term of kineties and also from the viewpoint of materials properties. ... 

A new and elegant solvent-free approach to main chain LCEs was found by Yang et al. [39] who, based on the work on linear LC polymers by Lub et al. [40 2], made use of the photo-induced addition of thiols and olefins (click-chemistry) to synthesize nematic polymer networks. Starting from a mixture of the mesogen, a tetrafunctional crosslinker and a photo-initiator networks with a around 170 °C were obtained by UV crossUnking (Scheme 8). 

Corona poling technique in the wire to plane geometry as well as parallel electrode poling techniques have been used to pole these classes of polymers in film form. Poling is carried out prior to crosslinking to align the NLO units and possibly poise the photoreactive groups for photo-induced solid state reaction. 

Zeng, J., H. Q. Hou, J. H. Wendorff, and A. Greiner (2005b). Photo-induced solid-state crosslinking of electrospun poly(vinyl alcohol) fibers. Macromolecular Rapid Communications 26(19) 1557-1562. 

Schiff-base or imine bonds are also available as pH-sensitive crosslinkers. Because imine bonds are degradable at weakly acidic pH values, endosome-specific dissociation can be achieved by imine-based crosslinking. A simple imine-based crosslinker, glutaraldehyde, has been used to stabilize a DNA delivery system [111]. Photo-induced polymerization [112], epoxide reaction [113], and Michael addition [114] have also been reported as crossUnking methods. However, because... 

A wide variety of photo-responsive aromatic polyethers containing azo linkages in the main chain were prepared by nucleophilic aromatic displacement reactions. These polymers undergo cis-trans isomerism in solution when exposed to ultraviolet light. This photo induced isomerization was found to have a profound affect on solution viscosity of the polymers. The polymers were amorphous in nature and undergo crosslinking reactions at elevated temperatures. 

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