Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.

Issue 4, 2014
Previous Article Next Article

Sunlight-induced crosslinking of 1,2-polybutadienes: access to fluorescent polymer networks

Author affiliations


The efficient sunlight-induced crosslinking of 1,2-polybutadienes to generate fluorescent patterns with spatial resolution is reported. The photochemical conjugation method employed is based on a nitrile imine-mediated tetrazole–ene cycloaddition (NITEC) reaction, which proceeds under UV-light irradiation (λmax = 312 nm) at ambient temperature in the absence of any catalyst. The NITEC reaction between 1-pentene and a newly designed di-linker, consisting of two photosensitive diaryl-substituted tetrazoles joined by a tetraethylene glycol spacer, was investigated in an initial study. Detailed characterization of a small molecule model study was performed by size exclusion chromatography (SEC), UV-vis and fluorescence spectroscopy as well as electrospray-ionization mass spectrometry (ESI-MS), which was also employed for monitoring the progress of the reaction (100% conversion in 20 min). Finally, two 1,2-polybutadienes of disparate molar masses were each photocrosslinked with the di-linker. The crosslinking reaction parameters, such as concentration, di-linker fraction and reaction time were optimized via SEC analysis and gravimetric determination of gel fractions. The applicability of the novel crosslinking technology for generating spatially controlled highly fluorescent gel patterns is demonstrated in a solvent-free reaction for 2 h under sunlight. In summary, the current study introduces an efficient light-triggered technology platform for crosslinking polymers carrying non-activated double bonds.

Graphical abstract: Sunlight-induced crosslinking of 1,2-polybutadienes: access to fluorescent polymer networks

Back to tab navigation

Supplementary files

Publication details

The article was received on 02 Oct 2013, accepted on 30 Oct 2013 and first published on 31 Oct 2013

Article type: Paper
DOI: 10.1039/C3PY01381B
Citation: Polym. Chem., 2014,5, 1447-1456

  •   Request permissions

    Sunlight-induced crosslinking of 1,2-polybutadienes: access to fluorescent polymer networks

    J. O. Mueller, N. K. Guimard, K. K. Oehlenschlaeger, F. G. Schmidt and C. Barner-Kowollik, Polym. Chem., 2014, 5, 1447
    DOI: 10.1039/C3PY01381B

Search articles by author