Abstract
The time dependence of small-angle neutron scattering is used to follow the interdiffusion of conventional and labeled polymers to obtain the self-diffusion coefficient, D, of chains in the melt. A number of experimental procedures and applications are reviewed. The most comprehensive results have been obtained for linear and three-arm star polymers of hydrogenated polybutadiene (HPB) and deuterated polybutadiene (DPB). The dependence of D on molecular weight, the effect of matrix dynamics on D, and the relation of D to zero shear viscosity are discussed in terms of the tube model for dynamics of entangled polymer chains.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
