3th WCSET-2014 at Nepal
Special Session at Ho Chi Minh City University of Technology, Vietnam:
Title:
Effect of a-Cyclodextrin inclusion complex on the
crystallization of 3-Arm Poly (e- Caprolactone)
Authors:
Bich-Tram, Truong-Le, Po-Da Hong, Minh-Vien, Le
Abstract: The
polymorphic crystallization behavior of 3-arm poly
(ε-caprolactone) (PCL) in the presence of nucleation
agents as α-cyclodextrin inclusion complex (IC) with PCL
was studied. Polymeric inclusion complexes between α-CD
and PCL was successfully prepared and characterized
quantitatively with various analytical methods.
Formation of α-CD-PCL IC was characterized by FT-IR,
DSC, WAXD, and 1H NMR. The WAXD studies showed that all
of the α-CD-ICs adopt a channel structure. Both DSC,
FT-IR and1H NMR results suggested that the polymer
chains were partially complexed by α-CDs. The nucleation
effect of α-CD-IC on the crystallization of PCL was also
investigated with DSC and POM. We found that the α-CD-IC
of a given polymer could effectively enhance the
crystallization of the polymer itself. This result may
be attributable to the limited mobility of the uncovered
part of the polymer segments constrained by its interior
part residing in the α- CD cavity, leading to the
nucleation of polymer crystallization.
Keywords: Inclusion
Complex, 3-Arm Poly(Ε-Caprolactone), Α-Cyclodextrin,
Nucleating Agent, Crystallization Behavior
Pages:
728-732