Abstract
AbstractNew monomers are described for the synthesis of rod‐like poly(1,4‐phenyleneethynylene)s with long flexible aliphatic side chains. By palladium catalyzed polycondensation soluble polymers with melting points around 100°C could be obtained. The molecular weight was estimated by GPC, VPO and elemental analysis: GPC showed a multimodale distribution with Pn = 9–15. NMR spectra were found to be in agreement with the assumed polymer structure, but signals of the acetylenic carbons could not be detected. A broad, structureless absorption with a maximum at λ = 410 nm is seen in the UV‐VIS‐spectra. The thermal decomposition of the substituted PPE's starts at about 400°C and is comparable to that of unsubstituted PPE in air.
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Dates
Type | When |
---|---|
Created | 22 years, 4 months ago (April 16, 2003, 6:06 a.m.) |
Deposited | 1 year, 10 months ago (Oct. 22, 2023, 5:31 a.m.) |
Indexed | 1 year, 3 months ago (May 28, 2024, 8:12 p.m.) |
Issued | 35 years, 5 months ago (April 1, 1990) |
Published | 35 years, 5 months ago (April 1, 1990) |
Published Online | 22 years, 5 months ago (March 12, 2003) |
Published Print | 35 years, 5 months ago (April 1, 1990) |
@article{Giesa_1990, title={Soluble poly(1,4‐phenyleneethynylene)s}, volume={191}, ISSN={0025-116X}, url={http://dx.doi.org/10.1002/macp.1990.021910413}, DOI={10.1002/macp.1990.021910413}, number={4}, journal={Die Makromolekulare Chemie}, publisher={Wiley}, author={Giesa, Reiner and Schulz, Rolf C.}, year={1990}, month=apr, pages={857–867} }