Citation: Yan Zhang, Bing Tao Wang, Zheng Hong Guo, Jie Chen, Zheng Ping Fang. Preparation and characterization of biodegradable aliphatic-aromatic copolyesters/nano-SiO ₂ hybrids via In situ melt polycondensation[J]. Chinese Chemical Letters, ;2009, 20(11): 1348-1352. doi: 10.1016/j.cclet.2009.05.013 shu

Preparation and characterization of biodegradable aliphatic-aromatic copolyesters/nano-SiO ₂ hybrids via In situ melt polycondensation

a Lab of Polymer Materials and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China;
b Institute of Polymer Composites, Zhejiang University, Hangzhou 310027, China

Received Date: 10 March 2009

Fund Project: Financial support from the Natural Science Foundation of Ningbo (No. 2007A610030) and Science and Technology Department of Zhejiang Province (No. 2008C11092-2) are greatly acknowledged.

In situ melt polycondensation was proposed to prepare biodegradable aliphatic-aromatic copolyesters/nano-SiO ₂hybrids based on terephthalic acid (TPA), poly(L-lactic acid) oligomer (OLLA), 1,4-butanediol (BDO) and nano-SiO ₂. TEM and FT-IR characterizations confirmed that TPA, OLLA and BDO copolymerized to obtain biodegradable copolyesters, poly(butyleneterephthalate-co-lactate) (PBTL), and the abundant hydroxyl groups on the surface of nano-SiO ₂ provided potential sites for In situ grafting with the simultaneous resulted PBTL. The nano-SiO ₂ particles were chemically wrapped with PBTL to form PBTL/nano- SiO₂hybrids. Due to the good dispersion and interfacial adhesion of nano-SiO ₂ particles with the copolyester matrix, the tensile strength and the Young's modulus increased from 5.4 and 5.6 MPa for neat PBTL to 16 and 390 MPa for PBTL/nano-SiO ₂ hybrids with 5 wt.% nano-SiO ₂, respectively. The mechanical properties of PBTL/nano-SiO ₂ hybrids were substantially improved.
- Biodegradable aliphatic-aromatic copolyesters,
- PBTL/nano-SiO ₂ hybrids,
- In situ melt polycondensation
1. [1]
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2. [2]
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3. [3]
  Xiafeng Yang , Wushan Sun , Chen Li , Wei Bai , Qingyin Wang , Gongying Wang . Synthesis of novel isosorbide-based polycarbonates by melt chain extension method. Chinese Chemical Letters, 2026, 37(4): 111674-. doi: 10.1016/j.cclet.2025.111674
4. [4]
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5. [5]
  Runzi Cao , Heng Shao , Xinjie Wang , Jian Wang , Enxiang Shang , Yang Li . Photocatalytic production of high-value-added fuels from biodegradable PBAT by Nb₂O₅/GCN heterojunction catalyst: Performance and mechanism. Chinese Chemical Letters, 2025, 36(7): 111029-. doi: 10.1016/j.cclet.2025.111029
6. [6]
  Peng Wang , Jianjun Wang , Ni Song , Xin Zhou , Ming Li . Radical dehydroxymethylative fluorination of aliphatic primary alcohols and diverse functionalization of α-fluoroimides via BF₃·OEt₂-catalyzed C‒F bond activation. Chinese Chemical Letters, 2025, 36(1): 109748-. doi: 10.1016/j.cclet.2024.109748
7. [7]
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8. [8]
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9. [9]
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10. [10]
  Yidan Chen , Luyang Liu , Jichun Li , Yu Deng , Hongxiu Yu , Kaiping Yuan , Yuanyuan Zhang , Yu Wang , Yonghui Deng . Flexible gas sensors based on in situ fabricated hierarchically porous SnO₂/PEDOT:PSS sensing layer. Chinese Chemical Letters, 2026, 37(4): 111654-. doi: 10.1016/j.cclet.2025.111654
11. [11]
  Hong Zhang , Cui-Ping Li , Li-Li Wang , Zhuo-Da Zhou , Wen-Sen Li , Ling-Yi Kong , Ming-Hua Yang . Asperochones A and B, two antimicrobial aromatic polyketides from the endophytic fungus Aspergillus sp. MMC-2. Chinese Chemical Letters, 2024, 35(9): 109351-. doi: 10.1016/j.cclet.2023.109351
12. [12]
  Feng Wu , Yuanjiu Xiao , Mengran Wei , Guoqiang Wang , Jian-Jun Feng . Lewis acid catalyzed enantioselective dearomative (3+2) cycloaddition of aromatic N-heterocycles with bicyclobutanes. Chinese Chemical Letters, 2026, 37(3): 111963-. doi: 10.1016/j.cclet.2025.111963
13. [13]
  Xindi Yang , Cunli Wang , Dongdong Wang , Haijuan Qin , Kuoxi Xu , Guangyan Qing . High efficiency detection of Zn²⁺ through the improved electron density of aromatic π-conjugated bridges. Chinese Chemical Letters, 2026, 37(4): 111215-. doi: 10.1016/j.cclet.2025.111215
14. [14]
  Dan LUO , Xingcheng LIU , Dong LI , Tong CHANG . Metal-support interaction effects on CO activation over Co_n/SiO₂ catalysts. Chinese Journal of Inorganic Chemistry, 2025, 41(11): 2337-2344. doi: 10.11862/CJIC.20250003
15. [15]
  Hao Lv , Zhi Li , Peng Yin , Ping Wan , Mingshan Zhu . Recent progress on non-metallic carbon nitride for the photosynthesis of H₂O₂: Mechanism, modification and in-situ applications. Chinese Chemical Letters, 2025, 36(1): 110457-. doi: 10.1016/j.cclet.2024.110457
16. [16]
  Yongli Zhao , Dingsheng Cao , Jie-Ping Wan , Yunyun Liu . Synthesis of 3-phosphinyl chromones via in situ iodination mediated C-H phosphination and the tunable synthesis of 2-phosphoryl chromanones. Chinese Chemical Letters, 2026, 37(1): 111740-. doi: 10.1016/j.cclet.2025.111740
17. [17]
  Lulu ZHANG , Yahui HOU , Yunfei LU , Rui LI , Jianxin LIU . In-situ generated ordered-disordered Bi₂WO₆ homojunction for enhanced photocatalytic nitrogen fixation performance. Chinese Journal of Inorganic Chemistry, 2026, 42(3): 606-616. doi: 10.11862/CJIC.20250277
18. [18]
  Yifeng TAN , Ping CAO , Kai MA , Jingtong LI , Yuheng WANG . Synthesis of pentaerythritol tetra(2-ethylthylhexoate) catalyzed by h-MoO₃/SiO₂. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2155-2162. doi: 10.11862/CJIC.20240147
19. [19]
  Ke Qiu , Fengmei Wang , Mochou Liao , Kerun Zhu , Jiawei Chen , Wei Zhang , Yongyao Xia , Xiaoli Dong , Fei Wang . A Fumed SiO₂-based Composite Hydrogel Polymer Electrolyte for Near-Neutral Zinc-Air Batteries. Acta Physico-Chimica Sinica, 2024, 40(3): 2304036-0. doi: 10.3866/PKU.WHXB202304036
20. [20]
  Jiang Gong , Fengling Zheng , Hanqing Zhang , Weihan Shu , Hao Wang , Ni Zhang , Pengbing Huang , Chuancai Zhang , Bin Dai . The interfacial effect of SiO₂-Ni₃Mo₃N efficiently catalyzes the low-temperature hydrogenation of dimethyl oxalate to ethanol. Chinese Chemical Letters, 2025, 36(8): 111122-. doi: 10.1016/j.cclet.2025.111122