Al~tract--Two series of well characterized styrene-isoprene two-block copolymers have been synthesized, with weight fractions 50 and 75 per cent styrene. Their intrinsic viscosities have been studied in a number of solvents and over a wide range of molecular weights. In general the intrinsic viscosi
Adhesive properties of ABA poly(styrene-b-isoprene) block copolymers
β Scribed by J.M. Widmaier; G.C. Meyer
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 309 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0032-3861
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A variety of blends of ABA poly(styrene-b-isoprene) copolymers with poly(2,6-dimethylphenylene oxide) were prepared. Their compatibility was examined by measuring both the apparent modulus of rigidity and the loss tangent. Several blends showed a unique glass transition temperature between those of
Osmotic pressure data, obtained from a study of four block copolymers, have been used to calculate second virial coefficients and number average molecular weights. The virial coefficients were determined over a range of temperatures in toluene and cyclohexane. The theta temperatures, entropy of dilu