Solution Properties of Model Branched Polymers

Dilute Solution Properties of Model Branched Polymers 

The main topics of interest are the molecular dimensions in solution, and their relation to intrinsic viscosity, and the thermodynamic properties of solutions. 

The unperturbed mean-square radius Sq is calculable for polymers of known structure, on the assumption of random-flight chains (Section 3). It has usually been assumed that random-flight conformations are adopted at the temperature Al at which A2 is zero, according to Flory s theory (18). Light 

Since the measurements most commonly used as an index of long branching are those of intrinsic viscosities, whereas the most readily calculable theoretical measures of branching are the purely geometrical quantities s or g0, and since the theoretical problem of relating these is not completely solved (Section 4), one of the applications of model branched polymers is to test proposed relationships. 

Decker (76) measured [17] and s2 for a number of comb-shaped polystyrenes at 0Al, and compared the hydrodynamic volume with s . The hydro- 

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