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 96
... cured with either novolacs [ 6 ] or aromatic diamines [ 7 ] . For the latter , a maximum conversion close to Xmax = 0.8 has been reported [ 7 ] . Increasing reaction time at constant cure temperature leads to an increase in both Tg and ...
... cured with either novolacs [ 6 ] or aromatic diamines [ 7 ] . For the latter , a maximum conversion close to Xmax = 0.8 has been reported [ 7 ] . Increasing reaction time at constant cure temperature leads to an increase in both Tg and ...
Page 116
... cure cycles . In general , cure is not uniform throughout a specimen so that differential balances have to be stated in terms of partial derivatives . For example , the cure in a heated mould , where properties change along the ...
... cure cycles . In general , cure is not uniform throughout a specimen so that differential balances have to be stated in terms of partial derivatives . For example , the cure in a heated mould , where properties change along the ...
Page 118
... cure cycle . Figure 4.18 shows two TL - versus - x trajectories , for a 2 cm - thick part cured using two different cycles . These trajectories were obtained by numerically solving the differential mass and energy balances [ 50 ] . The ...
... cure cycle . Figure 4.18 shows two TL - versus - x trajectories , for a 2 cm - thick part cured using two different cycles . These trajectories were obtained by numerically solving the differential mass and energy balances [ 50 ] . The ...
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