@misc{mendez_hyperbranched_polypphenylene_2007, 
author={Mendez, J.D., Schroeter, M., Weder, C.},
title={Hyperbranched Poly(p-phenylene ethynylene)s},
year={2007},
howpublished = {journal article},
doi = {https://doi.org/10.1002/macp.200700133},
abstract = {Hyperbranched poly(p-phenylene ethynylenes) (HB-PPEs) were synthesized in an A2 + B3 one-pot approach by the Pd/Cu-catalyzed cross-coupling reaction of 1,4-diethynyl-2,5-bis-(octyloxy)benzene and 1,2,4-tribromobenzene. Reaction conditions were varied with the objective to obtain well-defined HB-PPEs of different molecular weights. HB-PPEs with  from 11 000 to 237 000 g · mol-1 and PDIs of 1.5-10.7 were prepared. All polymers that comprised unreacted ethynyl groups eventually became insoluble upon drying, presumably as a result of solid-state cross-linking. This reaction could be prevented by endcapping the polymers with an excess of 4-iodotoluene.},
note = {Online available at: \url{https://doi.org/10.1002/macp.200700133} (DOI). Mendez, J.; Schroeter, M.; Weder, C.: Hyperbranched Poly(p-phenylene ethynylene)s. Macromolecular Chemistry and Physics. 2007. vol. 208, no. 15, 1625-1636. DOI: 10.1002/macp.200700133}}