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Synthesis and characterization of novel poly(butylene succinate)‐based copolyesters designed as potential candidates for soft tissue engineering
Author(s) -
Gigli Matteo,
Lotti Nadia,
Gazzano Massimo,
Finelli Lara,
Munari Andrea
Publication year - 2013
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23289
Subject(s) - crystallinity , materials science , copolymer , polybutylene succinate , amorphous solid , polymer , characterization (materials science) , polymer chemistry , phase (matter) , crystal (programming language) , chemical engineering , composite material , crystallography , nanotechnology , organic chemistry , chemistry , engineering , computer science , programming language
Poly(butylene succinate/diglycolate) copolymers by reactive blending were subjected to molecular and solid‐state characterization to study the effects of transesterification reactions. 13 C‐nuclear magnetic resonance analysis evidenced the formation of block copolymers. Thermal measurements showed that all the samples were semicrystalline, with a soft amorphous phase and a rigid crystal phase. Wide‐angle x‐ray diffraction measurements indicated that the copolymers are characterized by cocrystallization. The mechanical properties were found related to crystallinity degree. The random copolymer, characterized by the lowest crystallinity degree, exhibits the lowest elastic modulus and the highest deformation at break. Therefore, solid‐state properties of poly(butylene succinate/diglycolate) copolymers can be tailored by acting on the molecular architecture. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers