Study of PS-PMMA diblock copolymer in solution using UV, DSC, and light-scattering techniques

Authors
Gosa, KL Serban, S Christopoulou, V Papanagopoulos, D Dondos, A
Citation
Kl. Gosa et al., Study of PS-PMMA diblock copolymer in solution using UV, DSC, and light-scattering techniques, POLYM-PLAST, 39(1), 2000, pp. 95-104
Citations number
13
Categorie Soggetti
Material Science & Engineering
Journal title
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
ISSN journal
03602559 → ACNP
Volume
39
Issue
1
Year of publication
2000
Pages
95 - 104
Database
ISI
SICI code
0360-2559(2000)39:1<95:SOPDCI>2.0.ZU;2-P
Abstract
Two well-characterized samples of polystyrene-poly(methyl methacrylate) dib lock copolymers have been studied in solution. The ultraviolet spectroscopy , differential scanning calorimetry, and light-scattering techniques have s hown that in a temperature region between 30 degrees C and 40 degrees C, th e copolymer exhibits a conformational transition. The obtained results have also shown that below the transition temperature region, a more or less se gregated conformation is adopted, and a pseudo-Gaussian conformation is ado pted above this temperature region.