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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System 1, HDI + POP triol (LHT240), system 1 from Figure 2.1 1; system 7, MDI +
POP triol (LHT240), 80 °C, in bulk and in nitrobenzene solution, = 705gmor';
system 8. MDI + POP triol (LHT240), 70 °C, in bulk and in xylene solution, =
For the polyurethane- forming systems from two poly(oxypropylene) triols (PPTs),
M„ = 710 and A/n = 2630, and a diisocyanate (MDI), the CG structure was
obtained at the critical molar ratio rH = ([OH0]/[NCO0])c given by (cf. equation (2.2
)) rcH ...
(0.7 and 0.63 for the short and long triol, respectively) differ from the slopes s2
found for the G'p (0.66 and 0.59 for the short and long triol, respectively). Due to
this fact, tan 6p is slightly dependent on uaTg for both CG structures (Figure 8.5).
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Nonlinear polymerization gelation and network formation
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