Journal
DESIGNED MONOMERS AND POLYMERS
Volume 10, Issue 3, Pages 253-261Publisher
VSP BV
DOI: 10.1163/156855507780949209
Keywords
silicon; germanium; germarylene; silarylene; bis(chloroformate); spectroscopy
Categories
Ask authors/readers for more resources
Foll owing the reaction route between a diphenol and phosgene/toluene, solution in basic medium, six new bis(chloroformates) containing germarylene or silarylene units were synthesized with good yield. The variation on the structure is due to the nature of the groups bonded to the heteroatom. Therefore, combinations of Me, Et and Ph groups were used. 4,4'-(Diethylsilyiene)bis(phenyl chloroformate), 4,4'-(ethylmethylsilylene)bis(pheny1 chloroformate) and 4,4'-(diethylgermylene)bis(phenyI chloroformate) were obtained as a slightly yellow oil, while 4,4'(diphenylsilylene)bis(phenyl chloroformate), 4,4'-(methylphenylsilylene)bis(phenyI chloroformate) and 4,4'-(diphenylgermylene)bis(phenyI chloroformate) were obtained as a white solid. The new bi-functional monomers were characterized by FT-IR, Si-29-, C-13- and H-1-NMR spectroscopy and elemental analysis. The T-m, of the products in general was higher in samples containing germanium as the central atom, compared to those containing silicon.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available