4. Photoamorinated polymerization kinetics

One of the common features of all photopolymerizable systems is the speed of the process, which takes place in a fraction of a second under intense illumination. It is generally difficult to follow these ultra-rapid reactions quantitatively with a view to determining the fundamental kinetic parameters: polymerization rate, kinetic chain length, propagation rate constants (k _p ) and termination rate constants (k _t ). Time-resolved infrared spectroscopy (RTIR) [18] is currently the only method that can continuously record the evolution of the conversion rate as a function of exposure time in a sub-second time scale. This makes it possible to study the influence of chemical factors (photoinitiator, monomer, additives) and physical factors...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors

+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year

From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Plastics and composites

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Photoamorinated polymerization kinetics

Previous
page Light-curing resins

Photocrosslinked polymer properties

References

(1) - UV-curing science and technology - . − Pappas (S.P.) (éd.). Technology Marketing Corporation. Stamford (C.T.). Vol. 1 (1978), vol. 2 (1985).
(2) - DECKER (C.) - Dans Handbook of polymer Science and Technology. Vol. 3 (éd. Cheremisinoff (N.P.)) Marcel...

Theses

- http://www.sudoc.abes.fr
TOURÉ (M.L.) - Exposition UV spectrale [Texte imprimé] : instrumentation et modélisation. - Université Joseph Fourier (Grenoble) (2003).
...

Equipment

An industrial UV irradiation plant comprises three basic elements (figure 1 ):

a light source (S) fitted with a parabolic or elliptical reflector. This is usually a medium-pressure mercury vapor lamp, which can be doped with a...