ELASTIC COHERENT NEUTRON-SCATTERING FROM MIXTURES OF TRIBLOCK COPOLYMERS AND HOMOPOLYMERS IN THE HOMOGENEOUS BULK STATE

Authors
MASCHKE U EWEN B BENMOUNA M MEIER G BENOIT H
Citation
U. Maschke et al., ELASTIC COHERENT NEUTRON-SCATTERING FROM MIXTURES OF TRIBLOCK COPOLYMERS AND HOMOPOLYMERS IN THE HOMOGENEOUS BULK STATE, Macromolecules, 26(23), 1993, pp. 6197-6202
Citations number
39
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecules → ACNP
ISSN journal
00249297
Volume
26
Issue
23
Year of publication
1993
Pages
6197 - 6202
Database
ISI
SICI code
0024-9297(1993)26:23<6197:ECNFMO>2.0.ZU;2-M
Abstract
The coherent elastic scattering structure factor for mixtures of tribl ock copolymers and homopolymers in the homogeneous bulk state is descr ibed using the random-phase approximation and incompressibility constr aint. Mathematical expressions have been developed for the small q-reg ion as well as for the large q-limit. Small-angle neutron scattering e xperiments were performed on mixtures of triblock copolymers made of d euterated and hydrogenated poly(dimethylsiloxane) (PDMS) blocks and de uterated PDMS homopolymers. The experimental results are in good agree ment with the theoretical predictions.