CAJ | 학술논문

采用硝酸铈铵（CAN,Ce4＋）自由基引发聚合合成了羟乙基纤维素接枝聚4-乙烯基吡啶（HEC-g-P4VP）聚合物。并用FTIR、1H NMR确证了共聚物结构。将这种纤维素接枝改性聚合物溶解在不同pH值的水溶液中,研究了它的胶束化行为。利用扫描电镜（SEM）和透射电镜（TEM）相结合,对胶束化行为进行了观察,结果表明HEC-g-P4VP能够形成清晰的核壳结构。在不同pH值条件下,所形成的核壳结构有所变化。说明HEC-g-P4VP在溶液中具有一定的pH值诱导胶束化行为。最后,采用滴体积法对HEC-g-P4VP在水溶液中的表面张力进行了研究,随着接枝率的提高,其表面张力有降低的趋势。
채용초산시안（CAN,Ce4＋）자유기인발취합합성료간을기섬유소접지취4-을희기필정（HEC-g-P4VP）취합물。병용FTIR、1H NMR학증료공취물결구。장저충섬유소접지개성취합물용해재불동pH치적수용액중,연구료타적효속화행위。이용소묘전경（SEM）화투사전경（TEM）상결합,대효속화행위진행료관찰,결과표명HEC-g-P4VP능구형성청석적핵각결구。재불동pH치조건하,소형성적핵각결구유소변화。설명HEC-g-P4VP재용액중구유일정적pH치유도효속화행위。최후,채용적체적법대HEC-g-P4VP재수용액중적표면장력진행료연구,수착접지솔적제고,기표면장력유강저적추세。
Hydroxyethylcellulose-g-poly（4-vinylpyridine）（HEC-g-P4VP） was synthesized by using ceric ammonium nitrate（CAN） initiator in aqueous nitric acid solution.The products were illustrated by FTIR and 1H NMR.Transmission electron microscopy（TEM） and scanning electron microscopy（SEM） were used to study the micellization of copolymer in water.The pH-induced micellization of HEC-g-P4VP in water has been found.It showed that the morphology of micelles showed different solid and sphere structures at different pHs.Surface tension measurements were also studied by a set of drop volume techniques.With the grafting rate increasing,the surface tension tended to decrease.