Explanation

The reaction of ring compound monomer through ring opening addition to transformation into linear polymer. The composition of the generated polymer and monomer is the same. During polymerization, only the ring breaks occur, and the monomer becomes an open ring intermolecular connection, without adding new bonds. The ring opening polymerization of synthetic polymer containing heteroatoms on the main chain (such as heterochain polymer containing ether bonds, ester bonds, amide bonds, etc.) is mainly initiated by ionic initiator systems. The chain growth reaction energy of ring opening polymerization has the characteristics of chain polymerization, stepwise (reaction) polymerization or both. Many varieties have been industrialized, such as ethylene oxide, nylon resin -6, chlorinated polyether (poly (3,3 '- dichloromethyl butyloxane)), polyformaldehyde, etc.

Classification