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 162
... hard segment . The various copolymers are designated according to the chemical acronym given previously to define ... segments , based on a POE - POP triol ( M , ≈ 6000 g mol - 1 ) , and polyurea hard segments formed from MDI and DETDA ...
... hard segment . The various copolymers are designated according to the chemical acronym given previously to define ... segments , based on a POE - POP triol ( M , ≈ 6000 g mol - 1 ) , and polyurea hard segments formed from MDI and DETDA ...
Page 164
... hard - segment blocks with higher glass - transition temperatures ( TH ) [ 38 , 42 ] . Generally , as copolymerization proceeds and average hard - segment sequence length develops , T increases to a level that exceeds the temperature ...
... hard - segment blocks with higher glass - transition temperatures ( TH ) [ 38 , 42 ] . Generally , as copolymerization proceeds and average hard - segment sequence length develops , T increases to a level that exceeds the temperature ...
Page 168
... hard - segment content , in accord with the predictions of the Flory - Fox equation [ 78 ] , n TH = TH∞ + g B No ( 5.13 ) in which N is the number - average sequence length of the hard segments determined by copolymer stoichiometry , B ...
... hard - segment content , in accord with the predictions of the Flory - Fox equation [ 78 ] , n TH = TH∞ + g B No ( 5.13 ) in which N is the number - average sequence length of the hard segments determined by copolymer stoichiometry , B ...
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