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Preparation and properties of hyperbranched poly(amine‐ester) films using acetal cross‐linking units
Author(s) -
Zhu BaoKu,
Wei XiuZhen,
Xiao Ling,
Xu YouYi,
Geckeler Kurt E
Publication year - 2006
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1919
Subject(s) - swelling , glutaraldehyde , adsorption , ultimate tensile strength , contact angle , solvent , intrinsic viscosity , amine gas treating , polymer chemistry , materials science , chemical engineering , elongation , chemistry , organic chemistry , composite material , polymer , engineering
Novel films based on cross‐linked hyperbranched poly(amine‐ester) (HPAE) were prepared by cross‐linking the terminal hydroxyl groups of HPAE using glutaraldehyde (GA). The cross‐linking process was monitored by measuring the intrinsic viscosity of HPAE/GA in N , N ‐dimethylacetamide. The surface structures of the cross‐linked HPAE films obtained from different HPAE/GA ratios were imaged using atom force microscopy, and their properties were characterized in terms of hydrophilicity, solvent swelling, mechanics, and protein adsorption. It was found that the static contact angle was <32.9°, tensile strength was >0.35 MPa, elongation at break was >9.2%, swelling degree was >63% in water, and bovine serum albumin adsorption was relatively low. The results indicate that cross‐linked HPAE films have a strong application potential in many areas. Copyright © 2005 Society of Chemical Industry