疏水改性羟丙基胍胶的制备及性能  

Synthesis and Properties of Hydrophobiclly Modified Hydroxypropyl Guar Gum

作　　者：宫瑞英[1] 吴文辉[1] 史学峰[1] 

机构地区：[1]北京理工大学材料科学与工程学院,北京100081

出　　处：《高分子材料科学与工程》2009年第6期132-134,共3页Polymer Materials Science & Engineering

摘　　要：在碱性条件下,以溴代十六烷(C16H33Br)为醚化剂、羟丙基胍胶(HPG)为原料制备了疏水改性羟丙基胍胶(Hm-HPG-R16),确定各原料最佳质量比m(HPG)∶m(C16H33Br)∶m(NaOH)=3∶3∶0.25。Hm-HPG-R16样品的外观形貌较HPG更加规整。HPG和Hm-HPG-R16溶液性能研究表明,当溶液浓度高于临界缔合浓度cac时,Hm-HPG-R16溶液表观黏度(η)随浓度的增加趋势较HPG大,且溶液的稳定性较HPG得到了很大改善。Hydrophobiclly modified hydroxypropyl guar gum （Hm-HPG-R16） was synthesized with C46H33Br as ethering agent and hydroxypropyl guar gum （HPG） as material. The optimum dosages of all the material FIPG： C16 H33Br： NaOH were 3：3：0.25. In 1% Hm-FIPG-R16 aqueous solution the surface structure of Hm-HPG-R16 became more orderly than that of HPG. Properties research result of FIPG and Hm-HPG-R16 indicates when Hm-HPG-R16 solution density exceeds critical association density, the apparent viscosity of solution is greater with the increase of solution concentration than that of HPG, and the solution becomes more stable than that of FIPG.

关 键 词：羟丙基胍胶 疏水改性 表观黏度 

分 类 号：TQ314.246[化学工程—高聚物工业]