Polycondensation

• Polychloroformate

• Polycarbamate

• Polycarbomoyle Chloride

• Polycarbonate

Polyaddition

• Polycyclic Carbonate

• Polyamine

Ring Opening
Polymerization

• Cyclic Carbamate

• Aziridine

Rearrangement

• Carboxamide

• Acyl Azide

• Hydroxamic Azide

☠️

Phosgene

Cl-C(=O)-Cl

Polycondensation

1. Polychloroformate + Polyamine

[Cl-COO-R-OOC-Cl] + [H2N-R'-NH2]

2. Polycarbamate + Polyol

3. Polycarbomoyle Chloride

4. Polycarbonate

Polyaddition

Polycyclic Carbonate

(Cyclic-O-CO-O)

+

Polyamine (H2N-R-NH2)

Ring Opening

• Cyclic Carbamate

(Phosgene Derived)

• Aziridine

(C2H4NH)

Rearrangement

Carboxamide / Acyl Azide

+

Polyol (HO-R'-OH)

Curtius/Lossen Rearrangement