2767-99-9Relevant academic research and scientific papers
UV-thermal dual cured anti-bacterial thiol-ene networks with superior performance from renewable resources
Dai, Jinyue,Ma, Songqi,Zhu, Lixia,Wang, Sheng,Yang, Lijing,Song, Zhenlun,Liu, Xiaoqing,Zhu, Jin
, p. 215 - 222 (2017)
Bio-based anti-bacterial cross-linked films with superior properties were prepared via UV-thermal induced thiol-ene “click” reaction of diallyl itaconate (DAI), eugenol allyl ether (EAE) with trimethylolpropane tris (3-mercaptopropionate). DAI and EAE were made from one-step reaction of itaconic acid and eugenol with allyl bromide, respectively. The curing behaviors studied by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and gel content measurement illustrated that UV-thermal dual cure technology made the thiol-ene reaction more completely and produced films with higher performance compared with UV cure technology. The investigation of the thermal and mechanical properties of the cross-linked films by DSC, thermogravimetric analysis (TGA) and tensile test indicated that the glass transition temperature, tensile strength and modulus of the films were significantly improved after introducing DAI, and all the films exhibited similar and high thermal stability. Meanwhile, these bio-based polymer films showed excellent efficiency in killing common bacterias, e.g. S.?aureus and E.?coli in the dynamic shake test.
itaconic base three double bond compound and its preparation method and application
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Paragraph 0046; 0047, (2016/10/07)
The invention discloses an itaconic acid-based three double bond compound with the structure represented by formula I. The invention also discloses an application of an itaconic acid-based triepoxy compound. Epoxy groups are introduced to the itaconic acid-based three double bond compound to obtain the itaconic acid-based triepoxy compound with the structure represented by formula II. The invention also discloses a preparation method of the itaconic acid-based three double bond compound, and a preparation method of the itaconic acid-based triepoxy compound. The preparation methods have the advantages of simplicity, easy implementation and control, reduction or avoiding of the use of petrochemical products through the synthesis using renewable itaconic acid as a raw material, resource saving and environmental protection. In the invention, the itaconic acid-based three double bond compound and the itaconic acid-based triepoxy compound can be used in thermosetting resins.
An efficient and regiospecific esterification of dioic acids using PTSA
Rama Devi,Rajaram
, p. 294 - 296 (2007/10/03)
Regiospecific mono alkyl esters of dioic acids have been obtained in excellent yield using PTSA as a catalyst. This method is mild and simpler than the previous methods.
