Citation: Yan-hua Wang, Dong Xiang, Rong Ren, Jin Luo, Wei-lin Sun. L-Lactide Homopolymerization and Copolymerization with -Caprolactone by Tetrahydrosalen Stabilized Yttrium Borohydride Complex[J]. Chinese Journal of Polymer Science, ;2014, 32(11): 1500-1506. doi: 10.1007/s10118-014-1532-8 shu

L-Lactide Homopolymerization and Copolymerization with -Caprolactone by Tetrahydrosalen Stabilized Yttrium Borohydride Complex

Yan-hua Wang ¹ ,
Dong Xiang ¹ ,
Rong Ren ¹ ,
Jin Luo ¹ ,
Wei-lin Sun ^1,,

1.
Key Laboratory of Macromolecule Synthesis and Functionalization, Ministry of Education Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding author: Wei-lin Sun,
Received Date: 13 January 2014
Revised Date: 3 April 2014

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 21174129) and the Program for Zhejiang Leading Teams of ST Innovation (2011R50007).

L-lactide (LLA) homopolymerization and copolymerization with -caprolactone (CL) in toluene initiated by tetrahydrosalen-supported yttrium borohydride complex were systematically investigated. A possible mechanism of LLA homopolymerization was proposed according to the 1H-NMR result. In addition, PCL-b-PLLA copolymers were synthesized by sequential addition of monomers and their structure was characterized by GPC, 1H-NMR and 13C-NMR.
- Yttrium borohydride complex,
- Homopolymerization,
- Block copolymer
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