Organosoluble homopolyimides (PIs) and copolyimides (CoPIs) were synthesized from 2,2-bis[4-(4-aminophenoxy)phenyl] propane (BAPP) or 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane (6FBAPP) and six kinds of commercial aromatic dianhydrides (PMDA, IIa; BTDA, IIb; BPDA, IIc; ODPA, IId; DSDA, IIe; 6FDA, IIf). Although BAPP and IId similar to f could prepare three kinds of soluble PIs (III-A(d-f)), likewise 6FBAPP and IIc-f could prepare four PIs (III-Bc-f), the insoluble PIs were synthesized from these two diamines and other dianhydrides. However, soluble CoPIs could be prepared by alternative copolycondensation from a pair of dianhydrides of soluble PIs and insoluble PIs in certain molar ratios (m(1)/m(2)). The ratios of m(1)/m(2) of BAPP/PMDA series CoPIs (IVm1(d-f)/m2a) ranged from 3-5, but ratios of 6FBAPP/PMDA series CoPIs (Vm1(c-f)/m2a) decreased to 2-3. The m(1)/m(2) of the BAPP/BTDA and 6FBAPP/BTDA series CoPIs were 2, while the BAPP/BPDA series were between 1-2. Composition, solubility, tensile properties and thermal properties of these CoPIs synthesized via a two-stage thermal cyclodehydration were determined and were compared with their corresponding PIs.