PMID- 17655353
OWN - NLM
STAT- MEDLINE
DCOM- 20071017
LR  - 20070813
IS  - 1525-7797 (Print)
IS  - 1525-7797 (Linking)
VI  - 8
IP  - 8
DP  - 2007 Aug
TI  - Synthesis, cocrystallization, and enzymatic degradation of novel 
      poly(butylene-co-propylene succinate) copolymers.
PG  - 2437-49
AB  - A series of poly(butylene-co-propylene succinate) (PBPSu) random copolyesters 
      were synthesized and characterized using 1HNMR spectroscopy and viscometry. 
      Tensile properties decreased with increasing propylene succinate (PSu) content. 
      Cocrystallization and multiple melting behaviors were investigated. The 
      copolymers showed a eutectic behavior. The minimum melting point corresponded to 
      75 mol % PSu. Wide-angle X-ray diffraction (WAXD) patterns showed that the 
      copolymers with up to 60 mol % PSu units formed poly(butylene succinate) 
      crystals. The interplanar spacings slightly differentiated. The copolymer with 
      11.5 mol % poly(propylene succinate) (PPSu) units formed PPSu crystals. The 
      results indicated isodimorphic cocrystallization. The cocrystallization was 
      thermodynamically analyzed using the Wendling-Suter model. The defect free energy 
      decreased for copolymers with high PPSu content. The banded spherulites of the 
      copolyesters were studied, and growth rates were analyzed using the 
      Lauritzen-Hoffman theory. Enzymatic hydrolysis study, using Rhizopus delemar and 
      Pseudomonas cepacia lipases, showed that degradation was faster for copolymers 
      with high PSu content, compared even to the fast-degrading PPSu.
FAU - Papageorgiou, George Z
AU  - Papageorgiou GZ
AD  - Laboratory of Organic Chemical Technology, Department of Chemistry, Aristotle 
      University of Thessaloniki, GR-541 24, Thessaloniki, Macedonia, Greece.
FAU - Bikiaris, Dimitrios N
AU  - Bikiaris DN
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20070727
PL  - United States
TA  - Biomacromolecules
JT  - Biomacromolecules
JID - 100892849
RN  - 0 (Polyesters)
RN  - 0 (poly(butylene-co-propylene succinate))
RN  - EC 3.1.1.3 (Lipase)
SB  - IM
MH  - Crystallization
MH  - Hydrolysis
MH  - Lipase/chemistry
MH  - Magnetic Resonance Spectroscopy
MH  - Microscopy, Electron, Scanning
MH  - Molecular Structure
MH  - Polyesters/chemical synthesis/*chemistry
MH  - Transition Temperature
MH  - Viscosity
MH  - X-Ray Diffraction
EDAT- 2007/07/28 09:00
MHDA- 2007/10/18 09:00
CRDT- 2007/07/28 09:00
PHST- 2007/07/28 09:00 [pubmed]
PHST- 2007/10/18 09:00 [medline]
PHST- 2007/07/28 09:00 [entrez]
AID - 10.1021/bm0703113 [doi]
PST - ppublish
SO  - Biomacromolecules. 2007 Aug;8(8):2437-49. doi: 10.1021/bm0703113. Epub 2007 Jul 
      27.