ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Inoculation of polypropylene with styrene. I. Use of tri-ethylenetetramine-iron(II) redox system

D. Mikulášová and M. Gheorghiu

Slovak Technical University, Bratislava

 

Abstract: The inoculation of isotactic, oxidized polypropylene (I) with styrene (II) by using an emulsion redox system triethylenetetramine (III)-FeSO4.7H2O (IV) at 15-45° was described. The compn. of the polymn. system was: 0.4 g. I, 3 mL. II, 1 mL. III, 1 mL. IV, 0.5 mL. glucose, 3 mL. Merzol H (emulsifier), 1.5 mL. Na3PO4.12H2O, and 8 mL. H2O. The optimum pH is 7.0 at a III concn. of 4.56 × 10-3 mole/1. and a IV concn. of 2.28 × 10-3 mole/l.; the effective activation energy is approx. 8 kcal./mol. The most effective factors is the presence of combined III and IV and the pH. IV is more effective than III. In the absence of III and IV, there is no inoculation and large amts. of homopolymers, as much as 450 and 520% (based on the wt. of I), are formed.

Full paper in Portable Document Format: 188a614.pdf (in Slovak)

 

Chemical Papers 18 (8) 614–619 (1964)

Saturday, May 28, 2022

IMPACT FACTOR 2020
2.097
SCImago Journal Rank 2020
0.344
SEARCH
Advanced
VOLUMES
European Symposium on Analytical Spectrometry ESAS 2022
© 2022 Chemical Papers