Polymer Networks: Principles of Their Formation, Structure and PropertiesR.F. Stepto Written by an international team of authors with a strong emphasis on the underlying chemistry, this book forms a timely, concise, and accessible evaluation of the fundamentals of polymer network formation, structure, and properties, and how these three aspects are interrelated. |
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Page 48
... triol ( LHT240 ) , system 1 from Figure 2.11 ; system 7 , MDI + POP triol ( LHT240 ) , 80 ° C , in bulk and in nitrobenzene solution , M = 705 g mol1 ; system 8 , MDI + POP triol ( LHT240 ) , 70 ° C , in bulk and in xylene solution , Mc ...
... triol ( LHT240 ) , system 1 from Figure 2.11 ; system 7 , MDI + POP triol ( LHT240 ) , 80 ° C , in bulk and in nitrobenzene solution , M = 705 g mol1 ; system 8 , MDI + POP triol ( LHT240 ) , 70 ° C , in bulk and in xylene solution , Mc ...
Page 265
... triol are some three orders of magnitude higher than those of samples prepared from the short triol . This shift is due to higher contents of the polar urethane groups in systems with the short triol . Marked changes in the shapes of ...
... triol are some three orders of magnitude higher than those of samples prepared from the short triol . This shift is due to higher contents of the polar urethane groups in systems with the short triol . Marked changes in the shapes of ...
Page 277
... triol ) . As the relative reactivity of functional groups may not be equal and can change during the reaction ( substitution effect ) , polymerization leads to the formation of hard ( diisocyanate plus short triol ) and soft ...
... triol ) . As the relative reactivity of functional groups may not be equal and can change during the reaction ( substitution effect ) , polymerization leads to the formation of hard ( diisocyanate plus short triol ) and soft ...
Contents
Contents | 1 |
Nonlinear polymerization gelation and network formation | 14 |
4 | 40 |
Copyright | |
14 other sections not shown
Common terms and phrases
behaviour block copolymers Chapter Chem chemical components composition concentration constant conversion copolymerization crosslinking CTT diagram cure curve cyclization decrease deformation degree of polymerization dependence distribution Dušek EANCS Eichinger elastomers endlinking entanglements equation equilibrium Erman experimental Flory formed Frisch gel point gelation hard segments hard-segment content Ilavský increase initial injection moulding intramolecular reaction junction points kinetics linear Macosko Macromol Macromolecules mechanical microphase separation modulus molar mass molecular weight molecules monomer mould network chains network formation network materials network structure network-forming occur parameter phase separation Phys polymer networks Polymer Sci polyurethane predicted primary chains properties PUr-DETDA RA₂ ratio reactants reacted reactive groups RIM copolymer RIM materials ring structures rubber sample shear modulus shown in Figure soft segments soft-segment spinodal spinodal decomposition Stepto stress-strain Tcure temperature tensile thermodynamic thermosetting triol units values versus viscoelastic viscosity vitrification vitrification region volume fraction