Synthesis and characterization of novel biodegradable superabsorbent hydrogels based on chitin and succinic anhydride

2005 ◽  
Vol 61 (3) ◽  
pp. 322-326 ◽  
Author(s):  
Toshio Yoshimura ◽  
Ikumi Uchikoshi ◽  
Yuko Yoshiura ◽  
Rumiko Fujioka
Keyword(s):  
Succinic Anhydride ◽  
Synthesis And Characterization ◽  
Superabsorbent Hydrogels

Synthesis and Characterization of Carboxyl-Terminated Hyperbranched Polyester

2014 ◽  
Vol 665 ◽  
pp. 327-330
Author(s):  
Shi Jie Niu ◽  
Jian Wang ◽  
Yu Qing Bai ◽  
Ming Tao Run
Keyword(s):  
Glass Transition ◽  
Sodium Acetate ◽  
Succinic Anhydride ◽  
Molar Ratio ◽  
Synthesis And Characterization ◽  
Hydroxyl Groups ◽  
Hyperbranched Polyester ◽  
End Groups ◽  
Lower Glass Transition Temperature

In order to prepare carboxyl-terminated hyperbranched polyester (HBP-COOH), succinic anhydride was used to modify hydroxyl-terminated hyperbranched polyester (HBP-OH), and the influences of the solvents, catalysts and time on the product’s structure were investigated. When THF is used as the solvent, sodium acetate as the catalyst, the molar ratio of succinic anhydride and hydroxyl groups is 3:1, and the reaction time is 6 h at 65°C, the modification extent of the hydroxyl groups is about 99% with about 95% yield. HBP-COOH has much lower glass transition temperature than that of HBP-OH due to its long and flexible end-groups.

scholarly journals Synthesis and Characterization of Gelatin-Based Crosslinkers for the Fabrication of Superabsorbent Hydrogels

Materials ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 826 ◽  
Author(s):  
Penphitcha Amonpattaratkit ◽  
Sureerat Khunmanee ◽  
Dong Kim ◽  
Hansoo Park
Keyword(s):  
Synthesis And Characterization ◽  
Superabsorbent Hydrogels

scholarly journals Synthesis and Characterization of Copoly(succinic anhydride-ethylene oxide)-Poly(L-lactide) Block Copolymer

2000 ◽  
Vol 32 (4) ◽  
pp. 307-315 ◽  
Author(s):  
Yasukatsu Maeda ◽  
Atsuyoshi Nakayama ◽  
Ioannis Arvanitoyannis ◽  
Norioki Kawasaki ◽  
Kazuko Hayashi ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Ethylene Oxide ◽  
Succinic Anhydride ◽  
Synthesis And Characterization
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