Pulsed-laser polymerisation

Macromolecular Rapid Communications 22, No.12, 30th Ang.2001, p.978-82 PULSED-LASER POLYMERISATION IN COMPARTMENTALISED LIQUIDS. IIA. MINIEMULSIONS... 

The value of kp can be determined by pulsed-laser polymerisation (PLP) (Olaj Bitai, 1987 Coote et al, 1996 van Herk 2000). A list of reliable values of kp determined by this method is given in Appendix I. The number of particles, Np, is determined from particle size (Chapter 8) and conversion, through Equation 3.1. 

Low energy initiation techniques [179, 180, 181] (near infrared, ultrasonic radiation and line tuneable pulse laser) have lately emerged to be better alternatives to the high-energy radiations (y-irradiation and e-beam). Laser-induced polymerisation of monomers have attracted significant attention in recent years generating a considerable literature published on both pulsed... 

The propagation rate coefficient (kp) of methyl methacrylate is measnred in miniemulsions. The molecular weight distributions show many higher order peaks, which seems to be specific for pulsed initiation polymerisation in compartmentalised liquids. The kp values are very similar to bulk values although a frequency dependence, overlooked in earlier research, is also present in pulsed laser experiments in bulk. 18 refs. 

O.Y.F. Henry, S.A. Piletsky and D.G. GuUen, Fabrication of molecularly imprinted polymer microarray on a chip by mid-infrared laser pulse initiated polymerisation, Biosens. Bioelectron., 23 (12) 1769-1775, 2008. 

---