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Graft copolymers from peroxidized EPDM rubber

✍ Scribed by Barry D. Dean

Book ID
101583077
Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
402 KB
Volume
32
Category
Article
ISSN
0021-8995

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✦ Synopsis

The transition metal catalyzed peroxidation of the pendant allylic functionality in EPDM rubbers with tertiary butyl hydroperoxide results in elastomeric, high polymer peroxides. The peroxidized EPDM rubbers are useful as free radical initiators for the polymerization and grafting of vinyl monomers in the preparation of comb-type structures. The grafted EPDM rubbers are efficient impact modifiers for thermoplastic resins so long as the polymer grafted onto the EPDM is identical to or is thermodynamically miscible with the composition of said thermoplastic resin.

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## Abstract High rubber styrene–EPDM–acrylonitrile (AES) was prepared by the graft copolymerization of styrene (St) and acrylonitrile (AN) onto ethylene–propylene–diene terpolymer (EPDM) in __n__‐heptane/toluene cosolvent using benzoyl peroxide as an initiator. The effects of reaction conditions, s