In situ monitoring of the radiation-induced polymerisation of methylmethacrylate using fluorogenic molecular probes

The application of fluorogenic probe molecules for in situ monitoring of radiation-induced polymerisation is illustrated by measurements on the polymerisation of methylmethacrylate in a cobalt gamma-ray source. The probe molecules fluoresce only when they are incorporated into growing polymer chains...

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Bibliographic Details
Published inNuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 151; no. 1; pp. 361 - 366
Main Authors Warman, John M., Abellon, Ruben D., Luthjens, Leonard H., Suykerbuyk, John W.A., Verhey, Herman J., Verhoeven, Jan W.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.1999
Subjects
Fluorescent probes
Gamma-irradiation
Gel-effect
Methylmethacrylate
Radiation-induced polymerisation
Radiation-induced polymerisation
Gamma-irradiation
Fluorescent probes
82.50.−m
Methylmethacrylate
Gel-effect
82.30.Cf
32.50.+d
82.35.+t
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Summary:The application of fluorogenic probe molecules for in situ monitoring of radiation-induced polymerisation is illustrated by measurements on the polymerisation of methylmethacrylate in a cobalt gamma-ray source. The probe molecules fluoresce only when they are incorporated into growing polymer chains. The fluorescence intensity is therefore a measure of the degree of polymerisation. Changes in the fluorescence spectrum can in addition be used as a monitor of the changes occurring in the rigidity of the medium as polymerisation proceeds. The method is particularly suitable for studying the abrupt changes occurring during the `gel' or `Trommsdorff' phase of polymerisation.
ISSN:0168-583X
1872-9584
DOI:10.1016/S0168-583X(99)00113-5