TY - JOUR
T1 - One-Pot Versatile Synthesis of Branched-Multiblock Copolymers Based on Polylactide and Poly(ε-caprolactone)
AU - Chang, Yue
AU - Chen, Zhize
AU - Yang, Yiqi
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grant no. 51503029). It was also supported by the National Institute of Food and Agriculture of the U.S. Department of Agriculture (Multi-State Project S1054 (NEB 37-037) and USDA Hatch Act) and the Agricultural Research Division at the University of NebraskaLincoln.
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2018/1/10
Y1 - 2018/1/10
N2 - To generate a scalable and economical approach for preparing tough poly(l-lactide) (PLLA) materials, a series of branched multiblock poly(ε-caprolactone)/poly(l-lactide) (BLCL) was synthesized using 3-isocyanatopropyltriethoxysilane (IPTS) as a coupling agent. Triblock poly(l-lactide)-b-poly(ε-caprolactone)-b-poly(l-lactide)s (HO-LCL-OH) were synthesized by ring-opening polymerization of l-lactide using polycaprolactone diol as macroinitiator. The branched copolymers, BLCL, were then synthesized with IPTS as a chain extender. The effects of IPTS/HO-LCL-OH ratio on the thermoplasticity and tensile properties were investigated. The copolymers obtained were fabricated into films by hot press molding. The branched multiblock copolymers exhibited good thermoplasticity and remarkable toughness. Using this facile synthetic technique, various diol soft segments might be introduced into PLLA chain to prepare ductile PLLA material.
AB - To generate a scalable and economical approach for preparing tough poly(l-lactide) (PLLA) materials, a series of branched multiblock poly(ε-caprolactone)/poly(l-lactide) (BLCL) was synthesized using 3-isocyanatopropyltriethoxysilane (IPTS) as a coupling agent. Triblock poly(l-lactide)-b-poly(ε-caprolactone)-b-poly(l-lactide)s (HO-LCL-OH) were synthesized by ring-opening polymerization of l-lactide using polycaprolactone diol as macroinitiator. The branched copolymers, BLCL, were then synthesized with IPTS as a chain extender. The effects of IPTS/HO-LCL-OH ratio on the thermoplasticity and tensile properties were investigated. The copolymers obtained were fabricated into films by hot press molding. The branched multiblock copolymers exhibited good thermoplasticity and remarkable toughness. Using this facile synthetic technique, various diol soft segments might be introduced into PLLA chain to prepare ductile PLLA material.
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U2 - 10.1021/acs.iecr.7b04014
DO - 10.1021/acs.iecr.7b04014
M3 - Article
AN - SCOPUS:85040450294
SN - 0888-5885
VL - 57
SP - 242
EP - 249
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 1
ER -