Journal of Polymer Science Part A: Polymer Chemistry, Vol.32, No.1, 131-138, 1994
Synthesis and Properties of Polyoxyarylenesiloxanes
High molecular weight polymers containing oligosiloxanes in the backbone were made by the reaction of aromatic diols with alpha,omega-diaminosiloxane homologs. The glass transition temperatures dropped by 30-40-degrees-C in a homologous series with each siloxane added. The thermal stability also suffered when increasing the number of siloxane groups. The polymers all displayed high % char measurements and one polymer (disiloxane) tested had a V0 rating by UL-94 testing. The trisiloxane-containing polymer had a high percent elongation at break (> 300%). All the polymers tested were fairly susceptible to hydrolysis.