Polyester with partially fluorinated side chains

Details Polyester with partially fluorinated side chains Polyester with partially fluorinated side chains

C - Chemistry, Metallurgy

08

G

C08G 63/682 (2006.01) C08G 18/10 (2006.01) C08G 18/42 (2006.01) C08G 18/46 (2006.01) C08G 18/50 (2006.01) C08G 65/18 (2006.01) C08G 65/22 (2006.01)

Patent

CA 2362215

A polyester polymer including at least one polyoxetane block of repeating units derived from polymerizing at least one oxetane monomer having at least one pendant -CH2-O-(CH2)n- Rf group wherein said Rf group is partially or fully fluorinated is described. A preferred process for forming said polymer by reacting the hydroxyl terminated polymer with a polycarboxylic acid under appropriate conditions to form an ester linkage and then adding and reacting that product with polyester forming reactants.

L'invention concerne un polymère polyester comprenant au moins un bloc polyoxétane de motifs répétitifs dérivés de la polymérisation d'au moins un monomère oxétane comportant au moins un groupe Rf latéral -CH¿2?-O-(CH¿2?)¿n?-, ledit groupe Rf étant partiellement ou complètement fluoré. Le procédé préféré de formation dudit polymère consiste à faire réagir le polymère à terminaison hydroxyle avec un acide polycarboxylique dans des conditions propres à former une liaison ester, puis à ajouter et à faire réagir ce produit avec des réactifs formant des polyesters.

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