Citation: Yan Feng Luo, Mei Na Huang, Su Jun Wang, Ya Fu, Yuan Liang Wang. Design,synthesis and characterization of novel poly(urethane-urea) based on a macrodiol from poly(lactic acid) and poly (p-dioxanone)[J]. Chinese Chemical Letters, ;2011, 22(2): 237-240. doi: 10.1016/j.cclet.2010.10.026 shu

Design,synthesis and characterization of novel poly(urethane-urea) based on a macrodiol from poly(lactic acid) and poly (p-dioxanone)

Yan Feng Luo ^a,b, ,
Mei Na Huang ^a,b ,
Su Jun Wang ^a,b ,
Ya Fu ^a,b,c ,
Yuan Liang Wang ^a,b

a Key Lab of Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, China;
b Research Center of Bioinspired Material Science and Engineering, College of Bioengineering, Chongqing University, Chongqing 400030, China;
c Department of Biology, Chongqing University of Science and Technology, Chongqing 401331, China

Received Date: 29 June 2010

Fund Project: This study was supported by the National Key Technologies R&D Program of China (No. 2006BA103B04) and the Natural Key Scientific and Technological Project of Chongqing (No. CSTC 2008AB0027).

A series of novel poly(urethane-urea) (PUU) was synthesized from poly(lactide-co-p-dioxanone) macrodiol (HO-P(LA-co-PDO)-OH), hexamethylene diisocyanate (HDI) and butanediamine (BDA). The obtained PUU, which is recorded as P(LA-co-PDO)-PUU here, may demonstrate enhanced phase separation and thus improved shape memory property. FTIR was employed to characterize the copolymers, and the effects of NCO/OH molar ratios on T_g of PUU was investigated by means of differential scanning calorimetry (DSC). The results revealed the successful synthesis of P(LA-co-PDO)-PUU. In addition, the T_g of P(LA-co-PDO)-PUU increased from 37.9℃ to 44.2℃ with the increase NCO/OH ratios from 1.1 to 1.2. The P(LA-co-PDO)-PUU with T_g close to body temperature will have potential applications as shape memory polymers in biomedical fields, especially in minimally invasive surgery.
- Poly(urethane-urea),
- Polylactic acid,
- p-Dioxanone,
- Butanediamine,
- Shape memory polymer
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