MIL-HDBK-17-1F Volume 1,Chapter 4 Matrix Characterization weight distribution and chain structure. Principle Liquid chromatography technique.Separates molecules according to their size in so- lution and employs various detectors to monitor concentrations and identify sample components.Requires calibration with standard polymers. Measurement of scattered light intensities from dilute polymer solutions dependent upon solute concentration and scattering angle.Requires solubility,isolation,and in some cases fractionation of polymer molecules. Measurement of pressure differential between dilute polymer solution and solvent separated by a semi-permeable membrane.Colligative property method based upon thermodynamic chemical potential for polymer mixing. Involves isothermal transfer of solvent from a saturated vapor phase to a polymer so- lution and measurement of energy required to maintain thermal equilibrium.A colliga- tive property. Employs capillary or rotational viscometer to measure increase in viscosity of solvent caused by the presence of polymer molecules.Not an absolute method,requires standards. Strong centrifugal field is employed with optical detection to measure sedimentation velocity and diffusion equilibrium coefficients Sw and Dw.Sedimentation transport measurements of dilute polymer solutions corrected for pressure and diffusion pro- vides the sedimentation coefficient S.Permits analysis of gel containing solutions. Principle Measures boiling point elevation by polymer in dilute solution.A colligative property. Measures freezing point depression by polymer in dilute solution.A colligative prop- erty. The number or concentration of polymer chain end groups per weight or concentration of polymer are determined by specific chemical or instrumental techniques. Optical techniques are applied to measure the extent of precipitation as polymer solu- tion is titrated with a non-solvent under isothermal conditions or as the solution pre- pared with a poor solvent is slowly cooled. 4-9MIL-HDBK-17-1F Volume 1, Chapter 4 Matrix Characterization 4-9 weight distribution and chain structure. Principle Liquid chromatography technique. Separates molecules according to their size in so￾lution and employs various detectors to monitor concentrations and identify sample components. Requires calibration with standard polymers. Measurement of scattered light intensities from dilute polymer solutions dependent upon solute concentration and scattering angle. Requires solubility, isolation, and in some cases fractionation of polymer molecules. Measurement of pressure differential between dilute polymer solution and solvent separated by a semi-permeable membrane. Colligative property method based upon thermodynamic chemical potential for polymer mixing. Involves isothermal transfer of solvent from a saturated vapor phase to a polymer so￾lution and measurement of energy required to maintain thermal equilibrium. A colliga￾tive property. Employs capillary or rotational viscometer to measure increase in viscosity of solvent caused by the presence of polymer molecules. Not an absolute method, requires standards. Strong centrifugal field is employed with optical detection to measure sedimentation velocity and diffusion equilibrium coefficients Sw and Dw. Sedimentation transport measurements of dilute polymer solutions corrected for pressure and diffusion pro￾vides the sedimentation coefficient S. Permits analysis of gel containing solutions. Principle Measures boiling point elevation by polymer in dilute solution. A colligative property. Measures freezing point depression by polymer in dilute solution. A colligative prop￾erty. The number or concentration of polymer chain end groups per weight or concentration of polymer are determined by specific chemical or instrumental techniques. Optical techniques are applied to measure the extent of precipitation as polymer solu￾tion is titrated with a non-solvent under isothermal conditions or as the solution pre￾pared with a poor solvent is slowly cooled