Vernetzte polymere mit spaltbaren netzbrücken, 4. Untersuchungen zur netzstruktur von copolymeren aus 1,2-bis(4-vinylphenyl)-1,2-äthandiol und styrol

✍ Scribed by Braun, Dietrich ;Brendlein, Wolfgang ;Paudjojo, Lusiawati

• Publisher: Wiley (John Wiley & Sons)
• Year: 1977
• Weight: 555 KB
• Volume: 178
• Category: Article
• ISSN: 0025-116X
• DOI: 10.1002/macp.1977.021780304

✦ Synopsis

Abstract

Cross‐linked copolymers from styrene and 1,2‐bis(4‐vinylphenyl)‐1,2‐ethanediol (1) were synthesized. The concentration of the pendent vinyl groups linked to the polymer was determined by means of IR‐spectroscopy as a function of the initial composition, of the total monomer concentration, and of the yield. The values were compared with previously elaborated theoretical calculations. Differences between experiment and theory are presumably due to an inhomogeneous distribution of the pendent vinyl groups in the polymerization system. Measurements of swelling with crosslinked copolymers from styrene and 1 showed, that the specific gel bed volume can be well correlated with the theoretically calculated concentration of cross‐links, if the total monomer concentration and the fraction of cross‐linking component are kept below certain maximum values and if the yield does not exceed 80% significantly.