One-Stage High Temperature Catalytic Synthesis of Star-Shaped Oligoimides by (В4+АВ) Scheme

One-Stage High Temperature Catalytic Synthesis of Star-Shaped Oligoimides by (В4+АВ) Scheme

By the method of one-stage high-temperature polycondensation of 1,4-phenylene-bis-(5-oxy-1,3-phenylenediamine) (B4 monomer) with 4-(3-aminophenoxy)phthalic acid (AB monomer) in molten benzoic acid, four-arm star-shaped oligoimides with terminal amino groups were synthesized. Oligomers have a narrow...

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Veröffentlicht in:Polymer science. Series B 2019-03, Vol.61 (2), p.148-154
Hauptverfasser: Tsegelskaya, A. Yu, Soldatova, A. E., Semenova, G. K., Dutov, M. D., Abramov, I. G., Kuznetsov, A. A.
Format: Artikel
Sprache:eng
Schlagworte:
Acylation
Anhydrides
Benzoic acid
Catalysis
Chemical synthesis
Chemistry
Chemistry and Materials Science
High temperature
Molecular weight distribution
Monomers
Oligomers
Phenylenediamine
Polycondensation
Polymer Sciences
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Zusammenfassung:By the method of one-stage high-temperature polycondensation of 1,4-phenylene-bis-(5-oxy-1,3-phenylenediamine) (B4 monomer) with 4-(3-aminophenoxy)phthalic acid (AB monomer) in molten benzoic acid, four-arm star-shaped oligoimides with terminal amino groups were synthesized. Oligomers have a narrow molecular weight distribution ( D = 1.2–1.3) and are soluble in organic solvents. The star-shaped oligoimides with terminal acetamide fragments were obtained by acylation of terminal amino groups with acetic anhydride.
ISSN:1560-0904
1555-6123
DOI:10.1134/S1560090419010123