Back to Search
Start Over
Isothermal Crystallization Behavior of Biodegradable P(BS-b-PEGS) Multiblock Copolymers
- Source :
- Industrial & Engineering Chemistry Research. 51:8262-8272
- Publication Year :
- 2012
- Publisher :
- American Chemical Society (ACS), 2012.
-
Abstract
- Biodegradable multiblock copolymers poly(butylene succinate-b-poly(ethylene glycol) succinate) (P(BS-b-PEGS)) were prepared by direct polycondensation. The thermal and crystallization behavior of P(BS-b-PEGS) with weight fraction of PEGS component from 6 to 26 wt % were comparatively investigated with those of neat poly(butylene succinate) (PBS) by wide-angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), and polarized optical microscopy (POM). P(BS-b-PEGS) showed the same crystal structure as neat PBS, but the degree of crystallinity of copolymers was lower than that of neat PBS and decreased with increase in PEGS content. The isothermal crystallization kinetics study suggests that incorporation of PEGS component did not change the crystallization mechanism, but reduced the crystallization rate of the samples, and that increasing crystallization temperature decreased the crystallization rate of all the samples. The spherulites of neat PBS and P(BS-b-PEGS) showed banded morphologies. T...
- Subjects :
- Materials science
Condensation polymer
General Chemical Engineering
Kinetics
technology, industry, and agriculture
macromolecular substances
General Chemistry
Crystal structure
Industrial and Manufacturing Engineering
law.invention
Crystallinity
chemistry.chemical_compound
Differential scanning calorimetry
chemistry
Chemical engineering
law
Polymer chemistry
Copolymer
Crystallization
Ethylene glycol
Subjects
Details
- ISSN :
- 15205045 and 08885885
- Volume :
- 51
- Database :
- OpenAIRE
- Journal :
- Industrial & Engineering Chemistry Research
- Accession number :
- edsair.doi...........6c7269372058ef21b0e56b194294f3e9