Polymer Networks: Principles of Their Formation, Structure and Properties
Springer, 1998 - Science - 343 pages
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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(b) Variation of the critical ratio, XHs/Xc. with hard-segment content for PUU and
PUr copolymer networks showing the effects of hard-and-soft-segment structure
on predicted phase separation. PUU-DETDA and PUU-MDIPA comprise MDI ...
Table 5.2 Solubility parameters (6) of hard and soft segments and calculated
values of the hard- soft segment interaction parameter (xhs) at 298 K, normalized
to the volume of the soft-segment repeat unit for some RIM copolymer networks" ...
For example, PUU-DETDA defines a copoly(urethane-urea) comprising polyether
soft segments, based on a POE-POP triol (Mn « 6000 gmoP1), and polyurea hard
segments formed from MDI and DETDA. 5.5.1 Thermal behaviour The thermal ...
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Nonlinear polymerization gelation and network formation
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