Preparation of vinyl aromatic-allylic alcohol copoylmers

Details Preparation of vinyl aromatic-allylic alcohol copoylmers Preparation of vinyl aromatic-allylic alcohol copoylmers

C - Chemistry, Metallurgy

08

F

C08F 212/08 (2006.01) C08F 2/06 (2006.01) C08F 212/04 (2006.01) C08F 212/06 (2006.01) C08F 216/08 (2006.01)

Patent

CA 2434988

A process for preparing vinyl aromatic-allylic alcohol copolymers, such as styrene-allyl alcohol (SAA) copolymers, is disclosed. The process is conducted in the presence of a solvent, which enables the preparation of copolymers having both low hydroxyl functionalities and low molecular weights. SAA copolymers produced by the process have an average hydroxyl functionality less than about 4.

La présente invention concerne un procédé de préparation de copolymères d'un monomère de vinyle aromatique et d'un alcool allylique, tels que des copolymères de styrène et d'alcool allylique, appelés copolymères SSA. Le procédé est effectué en présence d'un solvant, qui permet de préparer des copolymères ayant à la fois de faibles fonctionnalités hydroxyle et de faibles poids moléculaires. Les copolymères SSA produits au moyen dudit procédé présentent une fonctionnalité hydroxyle moyenne inférieure à 4 environ.

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