ELASTOMERIC GRAFT COPOLYMERS AND THEIR USE AS COMPATIBILIZERS

• Main Authors: DIAS, ANTHONY, JAY, WANG, HSIENANG, CHUNG, TZEIANG, POWERS, KENNETH, WILLIAM
• Format: Patent
• Language: English; French; German
• Published: 09.09.1992
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

Des copolymères de greffe ont la formule (I) dans laquelle R et R' peuvent représenter hydrogène, alkyle et les halogénures d'alkyle primaire et secondaire, a est compris entre 14 et 70 000, b est compris entre 0 et 70 000 environ, c est compris entre 0 et 70 000 environ, d est compris entre 1 et 70 000 environ, X est un halogène, et Nu est un reste nucléophile produit par un nucléophile polymère ayant un poids moléculaire d'au moins 1 000 environ et étant suffisammment nucléophile pour que ledit nucléophile soit capable de donner des électrons aux halogénures de basile. Des procédés permettant de rendre compatibles des mélanges polymères en utilisant ces polymères de greffes sont également décrits. Graft copolymers are disclosed which have formula (I), in which R and R' can be hydrogen, alkyl, and the primary and secondary alkyl halides, a ranges from about 14 to 70,000, b ranges from 0 to about 70,000, c ranges from 0 to about 70,000, d ranges from about 1 to 70,000, X is a halogen, and Nu is a nucleophilic residue provided by a polymeric nucleophile having a molecular weight of at least about 1,000 and being sufficiently nucleophilic such that said nucleophile is capable of donating electrons to benzyl halides. Methods for compatibilizing polymer blends using these graft copolymers are also disclosed.