Page 272 - Carrahers_Polymer_Chemistry,_Eighth_Edition

Copolymerization 235

TABLE 7.4
Thermoplastic Elastomeric Block Copolymers
Hard Segment Soft or Elastomeric Segment General Type(s)
Polystyrene Butadiene and polyisoprene * Triblock, Branched
Polystyrene Poly(ethylene-cobutylene) † Triblock
Polystyrene Polyisobutylene Triblock, Branched
Poly(alpha-methylstyrene) Polybutadiene Triblock
Poly(alpha-mentylstyrene) Polyisoprene Triblock
Poly(alpha-mentylstyrene) Poly(propylene sulfi de) Triblock
Polystyrene Polydimethylsiloxane Triblock, Multiblock
iPolypropylene Poly(alpha-olefi ns) Mixed
iPropylene aPolypropylene Mixed
Polyethylene Poly(alpha-olefi ns) ‡ Multiblock
Polyethylene Poly(ethylene-cobutylene) Triblock
Polyethylene Poly(ethylene-copropylene) Triblock
Polyurethane Polydiacetylenes Multiblock
Polyurethane Polyester or Polyether § Multiblock
Poly(methyl methacrylate) Poly(alkyl acrylates) Triblock, Branched
Polysulfone Polydimethylsiloxane Multiblock
Polyetherimide Polydimethylsiloxane Multiblock
Polycarbonate Polyether Multiblock
Polycarbonate Polydimethylsiloxane Multiblock
Polyamide Polyester or Polyether ** Multiblock
Polyester Polyether †† Multiblock
*
Sample trade names of block copolymers: Kraton D, Cariflex TR, Taipol, Vector, Tufprene,

Asaprene, Calprene, Europrene Sol T, Stearon, Flexprene, Quintac, Finaprene, Coperbo,
Solprene, Stearon, and K-Resin. These products may be branched or linear with varying con-
†
tents of the various components; Elexar, C-Flex, Tekron, Hercuprene, Kraton G, Septon,
§
‡

Dynaflex, and Multi-Flex; Flexomer, Exact, Affi nity, and Engage; Texin, Desmopan, Estane,
**
Morthane, Elastollan, and Pellethane; Montac, Pebax, Orevac, Vestamide, Grilamid, and
††
Grilon; Arnitel, Hytrel, Ecdel, Lomod, Riteflex, and Urafi l.

TABLE 7.5
Thermoplastic Elastomers Based on Graft Copolymers
Hard Pendant Segment Soft Backbone
Polystyrene Poly(butyl acrylate)
Polystyrene Poly(ethyl-co-butyl acrylate)
Poly(4-chlorostyrene) Polyisobutylene
Polystyrene and Poly(alpha-methylstyrene) Polybutadiene
Polystyrene and Poly(alpha-methylstyrene) Polyisobutylene
Polystyrene and Poly(alpha-methylstyrene) Poly(ethylene-copropylene)
Poly(methyl methacrylate) Poly(butyl acrylate)
Polyindene Polyisobutylene
Polyindene Poly(ethylene-copropylene)
Polyindene Polybutadiene
Polyacenapthylene Polyisobutylene

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