Where you are: Home pageYear 2008Issue (71) → Article:
AAA     ENG | POL

Morphology Evaluation of Biodegradable Copolyesters Based on Dimerized Fatty Acid Studied by DSC, SAXS and WAXS

Research and development

Authors:

  • Kozłowska Agnieszka
    Polymer Institute, Szczecin University of Technology, Szczecin, Poland
  • Gromadzki D.
    Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
  • El Fray Mirosława
    Polymer Institute, Szczecin University of Technology, Szczecin, Poland
  • Stepanek P.
    Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic

Download... PDF
Full text

Abstract:

Aliphatic copolyesters of succinic acid (SA) and dimerized fatty acid (saturated dilinoleic acid (DLA)) were synthesized via direct copolycondensation in the presence of 1,4-butanediol. The thermal and mechanical properties of these copolymers were investigated as a function of the hard/soft segments’ ratio. The results of small-angle X-ray scattering (SAXS) investigations revealed that the characteristic d spacing of the copolyester supermolecular structure increases from 7 nm to 14 nm with increasing content of soft segments, DLA. It was found that the crystalline phase content determined by WAXS increases from 22 to 66% and was found to increase with increasing content in polybutylene succinate (PBS) sequences and increasing polybutylene succinate (PBS) sequence length. Also, it was shown that the synthesized polymers are susceptible to biodegradation and that the highest mass losses occurred for copolymers of lower crystallinity.

Tags: multiblock copolymers, DSC, WAXS, SAXS, biodegradation.

Published in issue no 6 (71) / 2008, pages 85–88.

CONTACT:

FIBRES & TEXTILES
in Eastern Europe
ul. Skłodowskiej-Curie 19/27,
90-570 Łódź, Poland
tel. (48-42) 638-03-14
e-mail: infor@ibwch.lodz.pl
Events:

EDITORIAL OFFICE
ul. Skłodowskiej-Curie 1927, 90-570 Łódź, Poland • tel.  (48-42) 638-03-14 • e-mail: infor@ibwch.lodz.plhttp://www.fibtex.lodz.pl

EDITORIAL DEPARTMENT
Editor-in-Chief Emilia Jaszczurska-Niedźwiedzka, V-ce Editor-in-Chief Marta Cyrczak, Text Editor Geoffrey Large, Assistant Editor Anna Wahl, Typesetting and Printed at Media-Press • Production IBWCh

facebook