MODEL BLOCK-COPOLYMERS WITH COMPLEX ARCHITECTURE

Citation
N. Hadjichristidis et al., MODEL BLOCK-COPOLYMERS WITH COMPLEX ARCHITECTURE, Macromolecular symposia, 132, 1998, pp. 207-220
Citations number
18
Categorie Soggetti
Polymer Sciences
Journal title
ISSN journal
10221360
Volume
132
Year of publication
1998
Pages
207 - 220
Database
ISI
SICI code
1022-1360(1998)132:<207:MBWCA>2.0.ZU;2-V
Abstract
The synthesis of non linear block copolymers of the type (BA)(2)B (3-m iktoarm star copolymer), (BA)(3)B (4-miktoarm star copolymer), (BA)(3) B(AB)(3) (super H-shaped), B(2)AB(2) (H-shaped) and (B,A)A(B,A) (pi-sh aped), where A is polyisoprene 1,4 and B is polystyrene was performed using anionic polymerization techniques and suitable chlorosilane chem istry. Characterization data showed that the samples are molecularly a nd compositionally homogeneous. TEM, SAXS and SANS were used to study the microphase behavior of the copolymers. For all samples, the result s were analyzed in the frame of the theoretical predictions given by M ilner and taking into account the results from previous studies on the A(2)B and A(3)B miktoarm star copolymers.