CHEM 4214 Study Guide - Midterm Guide: Osmotic Pressure, Persistence Length, Viscosity
Document Summary
C_\infty = characteristic ratio n = # bonds per molecule l = c-c length. L = contour length lp = persistence length for a coil, for a theta solvent, for a good solvent this one doesn"t necessarily have critical pt this is when g starts becoming positive. Chem4212 polymers page 2 if dilute enough, can ignore higher order terms. When b = 0, theta solvent, chi = 1/2 normalizes intensity so that it"s same no matter what instrument you use. Light scatterring, get similar eqn to osmotic pressure, but now finding mw eqn sheet has p(q) term for polymer of finite size; fudge factor for size of polymer. In guinier regime (assuming that ) (zimm plot assumes this), -> can modify eqn to get linearized version of eqn this is using assumption that. In raleigh regime, (raleigh scatterring) from osmotic pressure eqn and light scatterring, get the same b definition of theta.
