Poly borates physical properties

Table III111-114 contains the physical properties of several poly(pyrazo-lyl)borate complexes found in the literature. Group 2 poly(pyrazolyl)bor-ates are white monomeric complexes that exhibit some volatility. Ca [HB(pz)3]2, which appears to be one of the most volatile of the poly(pyrazolyl)borates, is reported to sublime at 160°C and 10 2 atm.113 The Ba[HB(3,5-Me2pz)3]2 compound is soluble in THF and hot toluene, and the M[HB(pz)3]2 compounds have good solubility in aromatic and chlorinated hydrocarbons. Ca[HB(3,5-Me2pz)3]2 and Sr[HB(3,5-Me2pz)3]2 are also soluble in aromatic and chlorinated hydrocarbons, but less so than their nonmethylated counterparts.114...

Ca, Sr, AND Ba Poly(pyrazolyl)borate Compounds and Their Physical Properties"... [Pg.251]

Poly(pyrazolyl)borates Chemical and Physic al Properties... [Pg.250]

Mechanical Behavior. The ionomers, - poly[Isobutylene-co-(4-methyl styrenyl, triphenyl phosphonium bromide or tetraphenyl borate)] were found to be different in physical appearance(hard and strong) and tougher than the starting material, the Exxpro elastomer. The mechanical properties of these quaternary phosphonium... [Pg.203]

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