%0 journal article %@ 0024-9297 %A Kricheldorf, H.R., Fritsch, D., Vakhtangishvili, L., Lomadze, N., Schwarz, G. %D 2006 %J Macromolecules %N 15 %P 4990-4998 %R doi:10.1021/ma051398s %T Cyclic Ladder Polymers Based on 5,5’,6,6’-Tetrahydroxy-3,3,3’,3’-tetramethylspirobisindane and 2,3,5,6-Tetrafluoropyridines %U https://doi.org/10.1021/ma051398s 15 %X from CTFP by means of substituted catechols as chain stoppers. Equimolar mixtures with cyclic ladder polymers did not indicate a selective detection of cycles by MALDI-TOF mass spectrometry.