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Electrospun fiber membranes of novel thermoplastic polyester elastomers: Preparation and characterization
Author(s) -
Cao Ding,
Fu Zhifeng,
Li Congju
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.34024
Subject(s) - materials science , copolymer , polyester , electrospinning , thermoplastic elastomer , polymer chemistry , membrane , dimethyl terephthalate , differential scanning calorimetry , thermoplastic , polymer , chemical engineering , composite material , chemistry , physics , engineering , biochemistry , thermodynamics
Electrospinning nanotechnology has recently attracted lots of attention in different kinds of applications. Poly(butylene terephthalate) random‐segment copolymers, named poly[(butylene terephthalate)‐ co ‐(1,4‐cyclohexanedimethanol terephthalate)]‐ b ‐poly(tetramethylene glycol) (P(BT‐ co ‐CT)‐ b ‐PTMG), were synthesized in this study. On the basis of the new thermoplastic polyester elastomers (TPEEs), the fiber membranes were subsequently electrospun. With the aid of a cosolvent of trifluoroacetic acid and dichloromethane, the resulting solutions with a concentration between 24 and 32% w/v were electrospun into fibers without beads. The results also show a good spinnability for the copolymer solution in a range of voltages from 16 to 24 kV. When the molar ratio of 1,4‐cyclohexanedimethanol to 1,4‐butanediol was 10 : 90, the electrospun membrane prepared by the corresponding copolymers had a higher elastic modulus than the commercial TPEE (Hytrel 4056, 4.51 ± 0.35 MPa). Differential scanning calorimetry and X‐ray diffraction showed that a crystalline phase existed in the electrospun poly[(butylene terephthalate)‐ co ‐(1,4‐cyclohexanedimethanol terephthalate)]‐ b ‐poly(tetramethylene glycol) (P(BT‐ co ‐CT)‐ b ‐PTMG) copolymer fiber membranes. The melting point of the electrospun fibers was approximately less than that of the corresponding copolymers © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011