Citation: ZHANG Han, SUN Zhiqiang, PANG Xuan, ZHOU Linyao, LI Shuai, SUN Haibo, CHEN Wenqi, CHEN Xuesi. Structure and Properties of Polylactide/Polycaprolactone/Poly(ε-caprolactone-L-lactide) Ternary Blends[J]. Chinese Journal of Applied Chemistry, ;2016, 33(9): 1026-1032. doi: 10.11944/j.issn.1000-0518.2016.09.150429 shu

Structure and Properties of Polylactide/Polycaprolactone/Poly(ε-caprolactone-L-lactide) Ternary Blends

ZHANG Han ^a,b ,
SUN Zhiqiang ^a ,
PANG Xuan ^a,, ,
ZHOU Linyao ^a ,
LI Shuai ^a ,
SUN Haibo ^a ,
CHEN Wenqi ^a ,
CHEN Xuesi ^a

1.
a Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
2.
b University of Chinese Academy of Sciences, Beijing 10049, China

Corresponding author: PANG Xuan,
Received Date: 2 December 2015
Available Online: 29 February 2016
Fund Project:

Three copolymers P(CL-co-LA) made from ε-caprolactone(ε-CL) and L-lactide(L-LA) have been synthesized via the ring-opening polymerization(ROP). Copolymers and PCL were added to PLA by melt blending, and then the PLA/PCL/P(CL-co-LA) blends were obtained. The compatibility, thermal and mechanical properties of the blends were studied. The results show that the interface compatibilizer of PLA/PCL blends, P(CL-co-LA) reduces the size of the PCL dispersed phase, moreover, the compatibility and toughness of PLA/PCL blends are enhanced. When the mass ratio of PLA/PCL/P(CL-co-LA) is 80/20/10, P(CL49/LA51), is which the numbers reprent the molar fraction(%), is the most suitable interface compatibilizer, and the elongation at break of the blends reaches as high as (210±30)%.
- polylactide,
- poly(ε-caprolactone),
- blends,
- toughened,
- compatibility
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