Zhang Fengsan, Shen Yiding, Ren Ting, Wang Lei, Su Ying
Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Xi'an, Shaanxi Province, People's Republic of China; Research Institute of Shanxi Yanchang Petroleum (group) Co., Ltd., Xi'an, Shaanxi Province, People's Republic of China.
Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Xi'an, Shaanxi Province, People's Republic of China.
Int J Biol Macromol. 2017 Apr;97:317-322. doi: 10.1016/j.ijbiomac.2017.01.062. Epub 2017 Jan 16.
A new guar gum derivative was synthesized though the nucleophilic substitution of sodium hydroxide-activated guar gum with n-butyl glycidyl (BGE) ether. The physicochemical properties of 2-alkenyl-3-butoxypropyl guar gum (ABPG) were characterized by attenuated total reflection Fourier transform infrared spectrometry (ATR-FTIR), X-ray diffraction (XRD) and thermal gravimetric analyses (TGA). The results showed that sodium hydroxide can be effectively substituted with BGE to form the ABPG. The steady and dynamic rheological properties of the aqueous solution and ABPG gel were determined using an RS6000 rheometer. Compared with the guar gum, ABPG enhanced the thickening property and improved the solution stability. The ABPG gel exhibited good temperature resistance and shear stability properties.
通过氢氧化钠活化的瓜尔胶与正丁基缩水甘油醚（BGE）进行亲核取代反应，合成了一种新型瓜尔胶衍生物。采用衰减全反射傅里叶变换红外光谱（ATR-FTIR）、X射线衍射（XRD）和热重分析（TGA）对2-烯基-3-丁氧基丙基瓜尔胶（ABPG）的理化性质进行了表征。结果表明，氢氧化钠可被BGE有效取代形成ABPG。使用RS6000流变仪测定了ABPG水溶液和凝胶的稳态及动态流变性能。与瓜尔胶相比，ABPG增强了增稠性能并提高了溶液稳定性。ABPG凝胶表现出良好的耐热性和剪切稳定性。
