Block copolymers: overview and critical survey |
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Page 244
These materials contain 20-90% ethylene oxide, have molecular weights of 1000
-16,000, and range in appearance from mobile liquids to hard solids. ... On the
other hand, longer poly(ethylene oxide) blocks display superior wetting behavior.
These materials contain 20-90% ethylene oxide, have molecular weights of 1000
-16,000, and range in appearance from mobile liquids to hard solids. ... On the
other hand, longer poly(ethylene oxide) blocks display superior wetting behavior.
Page 247
Block A Block B Initiator system Conditions ence Ethylene oxide Styrene Dianion
(Na or K) of -80° to 0°C, C24-C26, a-methylstyrene tetramer then C90, 25° to 75°
C C91 Styrene K biphenyl — C57 Styrene Poly(ethylene oxide) — C97 ...
Block A Block B Initiator system Conditions ence Ethylene oxide Styrene Dianion
(Na or K) of -80° to 0°C, C24-C26, a-methylstyrene tetramer then C90, 25° to 75°
C C91 Styrene K biphenyl — C57 Styrene Poly(ethylene oxide) — C97 ...
Page 250
The molecular weight (MD) of the poly(ethylene_oxide) blocks was kept constant
at ~10,000, while the polystyrene Mn ranged from 5000 to 50,000. The poly(
ethylene oxide) segment melting point (Tm) of these copolymers ranged from 53°
to ...
The molecular weight (MD) of the poly(ethylene_oxide) blocks was kept constant
at ~10,000, while the polystyrene Mn ranged from 5000 to 50,000. The poly(
ethylene oxide) segment melting point (Tm) of these copolymers ranged from 53°
to ...
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Contents
Polymer Hybrids | 7 |
Block Copolymer Architecture | 24 |
Block Copolymer Synopsis | 30 |
Copyright | |
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Common terms and phrases
A-B block A-B-A block copolymers a-methylstyrene adipate anionic behavior bisphenol blends block copolymer structures block copolymers block copolymers containing block length British Patent butadiene caprolactone catalyst chain Chapter Chem chemical compositions condensation copolymerization cross-linked crystalline diisocyanate Dimethylsiloxane diol display domains elastomeric end groups ester ethylene oxide films French Patent German Offen graft copolymers homopolymers initiation Internationale Research Maatschappij isoprene Japanese Patent Macromolecules Makromol Matzner mechanical properties melting point modulus molecular weight monomer morphology naphthalene Netherlands Patent Appl Noshay oligomers phase Phillips Petroleum phosgenation Plast poly poly(ethylene oxide polyamide polybutadiene polycaprolactone polyester polyether Polym polymerization polypropylene polystyrene polysulfone polyurethanes prepared random copolymers reaction reported Research Maatschappij N.V. Rubber segments Shell Internationale Research siloxane Soedin solubility solution solvent styrene styrene-butadiene styrene-butadiene-styrene synthesis techniques temperature tensile strength terephthalate tetrahydrofuran Tetramethylene thermal tion two-phase U.S. Patent urethane vinyl viscosity Vysokomol
References to this book
Polymer Surfaces: From Physics to Technology Fabio Garbassi,M. Morra,Ernesto Occhiello No preview available - 1998 |