Citation: Jia Chen, Yuan Liang Wang, Mei Na Huang. Synthesis and characterization of biodegradable materials: PDLLA-(MAh-Diol)_n-PDLLA copolymer[J]. Chinese Chemical Letters, ;2007, 18(5): 613-616. doi: 10.1016/j.cclet.2007.03.015 shu

Synthesis and characterization of biodegradable materials: PDLLA-(MAh-Diol)_n-PDLLA copolymer

Research Center of Bioinspired Material Science and Engineering BIMSEC, College of Bioengineering, Chongqing University, Chongqing 400044, PR China

Received Date: 15 December 2006

Fund Project: This study was supported by the National 863 Program of China (No. 2003AX32X210).

The novel biodegradable copolymer PDLLA-(MAH-Diol)_n-PDLLA with unsaturated bond was synthesized by copolymerizing lactide and prepolymer, which was prepared by the polycondensation of maleic anhydride and poly (ethylene glycol), using p-toluene sulphonic acid as catalyst. The new copolymer has improved hydrophilicity and flexibility. The structure and properties of the novel polymers were studied by FTIR, NMR, GPC-MALLS and DSC.
- Poly(ethylene glycol),
- Maleic anhydride,
- PDLLA-(MAH-Diol)_n-PDLLA,
- Unsaturated bond
1. [1]
  Xinyu Liu , Jialin Yang , Zonglin He , Jiaoyan Ai , Lina Song , Baohua Liu . Linear polyurethanes with excellent comprehensive properties from poly(ethylene carbonate) diol. Chinese Chemical Letters, 2025, 36(1): 110236-. doi: 10.1016/j.cclet.2024.110236
2. [2]
  Xiaoxiao Huang , Zhi-Long He , Yangpeng Chen , Lei Li , Zhenyu Yang , Chunyang Zhai , Mingshan Zhu . Novel P-doping-tuned Pd nanoflowers/S,N-GQDs photo-electrocatalyst for high-efficient ethylene glycol oxidation. Chinese Chemical Letters, 2024, 35(6): 109271-. doi: 10.1016/j.cclet.2023.109271
3. [3]
  Qian Wang , Ting Gao , Xiwen Lu , Hangchao Wang , Minggui Xu , Longtao Ren , Zheng Chang , Wen Liu . Nanophase separated, grafted alternate copolymer styrene-maleic anhydride as an efficient room temperature solid state lithium ion conductor. Chinese Chemical Letters, 2024, 35(7): 108887-. doi: 10.1016/j.cclet.2023.108887
4. [4]
  Cong-Bin Ji , Ding-Xiong Xie , Mei Chen , Ye-Ying Lan , Bao-Hua Zhang , Ji-Ying Yang , Zheng-Hui Kang , Shu-Jie Chen , Yu-Wei Zhang , Yun-Lin Liu . Green synthesis of 2-trifluoromethylquinoline skeletons via organocatalytic N-[(α-trifluoromethyl)vinyl]isatins CN bond activation. Chinese Chemical Letters, 2025, 36(7): 110598-. doi: 10.1016/j.cclet.2024.110598
5. [5]
  Guoju Guo , Xufeng Li , Jie Ma , Yongjia Shi , Jian Lv , Daoshan Yang . Photocatalyst/metal-free sequential C–N/C–S bond formation: Synthesis of S-arylisothioureas via photoinduced EDA complex activation. Chinese Chemical Letters, 2024, 35(11): 110024-. doi: 10.1016/j.cclet.2024.110024
6. [6]
  Ming-Ming Gan , Zi-En Zhang , Xin Li , F. Ekkehardt Hahn , Ying-Feng Han . Hierarchical self-assembly of fluorinated poly-N-heterocyclic carbene pillarplexes with anions. Chinese Chemical Letters, 2025, 36(10): 110624-. doi: 10.1016/j.cclet.2024.110624
7. [7]
  Heng Yang , Zhijie Zhou , Conghui Tang , Feng Chen . Recent advances in heterogeneous hydrosilylation of unsaturated carbon-carbon bonds. Chinese Chemical Letters, 2024, 35(6): 109257-. doi: 10.1016/j.cclet.2023.109257
8. [8]
  Shicheng Dong , Jun Zhu . Could π-aromaticity cross an unsaturated system to a fully saturated one?. Chinese Chemical Letters, 2024, 35(6): 109214-. doi: 10.1016/j.cclet.2023.109214
9. [9]
  Yang Qin , Jiangtian Li , Xuehao Zhang , Kaixuan Wan , Heao Zhang , Feiyang Huang , Limei Wang , Hongxun Wang , Longjie Li , Xianjin Xiao . Toeless and reversible DNA strand displacement based on Hoogsteen-bond triplex. Chinese Chemical Letters, 2024, 35(5): 108826-. doi: 10.1016/j.cclet.2023.108826
10. [10]
  Bowen Xu , Jiahao Chen , Lulu Cui , Xinyue Li , Yuan Xue , Sheng Han . Terpolymers of alkyl methacrylate-trans anethole-1,2,3,6-tetrahydrophthalic anhydride copolymers: A low dosage and high-efficiency cold flow improver for diesel fuel. Chinese Chemical Letters, 2025, 36(5): 110196-. doi: 10.1016/j.cclet.2024.110196
11. [11]
  Haojie Song , Laiyu Luo , Siyu Wang , Guo Zhang , Baojiang Jiang . Advances in poly(heptazine imide)/poly(triazine imide) photocatalyst. Chinese Chemical Letters, 2024, 35(10): 109347-. doi: 10.1016/j.cclet.2023.109347
12. [12]
  Jinli Chen , Shouquan Feng , Tianqi Yu , Yongjin Zou , Huan Wen , Shibin Yin . Modulating Metal-Support Interaction Between Pt3Ni and Unsaturated WOx to Selectively Regulate the ORR Performance. Chinese Journal of Structural Chemistry, 2023, 42(10): 100168-100168. doi: 10.1016/j.cjsc.2023.100168
13. [13]
  Longlong Geng , Huiling Liu , Wenfeng Zhou , Yong-Zheng Zhang , Hongliang Huang , Da-Shuai Zhang , Hui Hu , Chao Lv , Xiuling Zhang , Suijun Liu . Construction of metal-organic frameworks with unsaturated Cu sites for efficient and fast reduction of nitroaromatics: A combined experimental and theoretical study. Chinese Chemical Letters, 2024, 35(8): 109120-. doi: 10.1016/j.cclet.2023.109120
14. [14]
  Yi-Fan Wang , Hao-Yun Yu , Hao Xu , Ya-Jie Wang , Xiaodi Yang , Yu-Hui Wang , Ping Tian , Guo-Qiang Lin . Rhodium(Ⅲ)-catalyzed diastereo- and enantioselective hydrosilylation/cyclization reaction of cyclohexadienone-tethered α, β-unsaturated aldehydes. Chinese Chemical Letters, 2024, 35(9): 109520-. doi: 10.1016/j.cclet.2024.109520
15. [15]
  Jinyuan Cui , Tingting Yang , Teng Xu , Jin Lin , Kunlong Liu , Pengxin Liu . Hydrogen spillover enhances the selective hydrogenation of α,β-unsaturated aldehydes on the Cu-O-Ce interface. Chinese Journal of Structural Chemistry, 2025, 44(1): 100438-100438. doi: 10.1016/j.cjsc.2024.100438
16. [16]
  Jiaxuan YANG , Chenfa DENG , Jingyang LIU , Chenzexi XU , Hongxin CHEN , Yahui ZHU , Ying LI , Shuhua WANG , Rongping ZHOU , Chao CHEN . Advances in selective hydrogenation of α, β-unsaturated aldehydes/ketones catalyzed by metal-organic frameworks and their derivatives: A review. Chinese Journal of Inorganic Chemistry, 2025, 41(10): 1973-2010. doi: 10.11862/CJIC.20250175
17. [17]
  Junyou Ding , Xiaotong Li , Hongmin Lin , Bochao Ye , Xing Zhou , Feihu Cui , Yingming Pan , Haitao Tang . Highly regioselective hydrogermylation of unsaturated C-C bonds over ligand-control single atom palladium catalysts. Chinese Chemical Letters, 2025, 36(11): 111286-. doi: 10.1016/j.cclet.2025.111286
18. [18]
  Zhihua Wang , Xiang-Zhao Zhu , Xinglei He , Chen-Xu Gong , Wang-Fu Liang , Wenfeng Wang , Yuqi Lin , Ke-Yin Ye . Deoxygenative hydrohalogenation of propargyl alcohols: Regio- and stereoselective synthesis of unsaturated distal dihalides. Chinese Chemical Letters, 2025, 36(12): 111067-. doi: 10.1016/j.cclet.2025.111067
19. [19]
  Fangzhou Wang , Wentong Gao , Chenghui Li . A weak but inert hindered urethane bond for high-performance dynamic polyurethane polymers. Chinese Chemical Letters, 2024, 35(5): 109305-. doi: 10.1016/j.cclet.2023.109305
20. [20]
  Yunkang Tong , Haiqiao Huang , Haolan Li , Mingle Li , Wen Sun , Jianjun Du , Jiangli Fan , Lei Wang , Bin Liu , Xiaoqiang Chen , Xiaojun Peng . Cooperative bond scission by HRP/H₂O₂ for targeted prodrug activation. Chinese Chemical Letters, 2024, 35(12): 109663-. doi: 10.1016/j.cclet.2024.109663