4,4'-Dihydroxybiphenyl → 4-Hydroxybenzoic Acid
Reaktionsgleichung
[OH:1]C1C=CC(C2C=CC(O)=CC=2)=CC=1.C(O)(=O)CCCC[CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][C:26]([OH:28])=[O:27]>>[OH:1][C:22]1[CH:21]=[CH:20][C:25]([C:26]([OH:28])=[O:27])=[CH:24][CH:23]=1Komponenten
3
Versuchsvorschrift
Polymerization was carried out in the same way as Example 1, except that (A) preparing materials were changed to 4,4′-dihydroxybiphenyl, dodecanedioic acid, 4-hydroxybenzoic acid, acetic anhydride, and (B) a mixture of 4,4′-dihydroxybiphenyl, dodecanedioic acid, 4-hydroxybenzoic acid, acetic anhydride at a molar ratio of 1.05:1:2:4.1 in which 4,4′-dihydroxybiphenyl was excess by 5 mol % was prepared in a reactor vessel, thereby producing a thermoplastic resin in which 4-hydroxybenzoic acid was copolymerized with the resin of Example 1. A molecular structure, sealed end groups, and a sealing rate of ends are shown in Table 2, and changes in number average molecular mass and thermal conductivity before and after melting are shown in Table 3.
Aufarbeitung
- customPolymerization