Abstract
AbstractHigh molecular weight, linear polyethers were prepared by polymerizing a series of ring‐substituted phenyl glycidyl ethers by using the ferric chloride–propylene oxide and dibutylzinc–water catalyst systems. The α‐naphthyl, β‐naphthyl, p‐phenylphenyl, the o‐, m‐, and p‐methyl, and the o‐ and p‐chlorophenyl polymers resemble the parent polymer in that they are readily crystallizable polyethers which have melting points above 170°C. The other substituted poly(phenyl glycidyl ethers), including the o‐ and p‐isopropyl, p‐tert‐butyl, p‐octyl, and 2,4,6‐trichloro derivatives show much less tendency to crystallize and are lower melting. The x‐ray and electron diffraction data established that poly(o‐chlorophenyl glycidyl ether) crystallizes in an orthorhombic unit cell; data obtained in a parallel study of unsubstituted poly(phenyl glycidyl ether) did not allow assignment of a specific structure.
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