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Binary blends based on poly(vinyl chloride) and multi‐block copolymers containing poly(ϵ‐caprolactone) and poly(ethylene glycol) segments
Author(s) -
Penco Maurizio,
Sartore Luciana,
Bignotti Fabio,
Rossini Mariapia,
D'Amore Alberto,
Fassio Federica
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200203)180:1<9::aid-masy9>3.0.co;2-1
Subject(s) - miscibility , materials science , copolymer , ethylene glycol , polymer chemistry , caprolactone , differential scanning calorimetry , condensation polymer , vinyl chloride , tetrahydrofuran , plasticizer , chemical engineering , polymer , organic chemistry , chemistry , composite material , physics , solvent , thermodynamics , engineering
Binary blends based on poly(vinyl chloride) (PVC) were prepared both by casting from tetrahydrofuran (THF) and by mixing in the melt form, in a discontinuous mixer, PVC and multi‐block copolymers containing poly(ϵ‐caprolactone) (PCDT) and poly(ethylene glycol) (PEG) segments. PCDT‐PEG copolymers were synthesized using a polycondensation reaction where the α,ω‐bis‐chloroformate of an oligomeric poly(ϵ‐caprolactone) diol terminated (PCDT) and oligomeric PEG were employed as macromonomers. For comparison purposes, blends PVC with starting oligomers as well as with mixtures containing a typical low molecular plasticizer, dioctylphthalate (DOP), were also prepared. The copolymer miscibility was studied by differential scanning calorimetry (DSC) and FT‐IR spectroscopy. The blend morphology was investigated by polarized light microscopy (PLM). A higher miscibility with PVC was observed for copolymers compared to PEG.