CAJ | 학술논문

采用离子液体1-甲基-3乙基咪唑磷酸二甲酯（[MEIM][DMP]）与表面活性剂耦合处理纤维素，考察表面活性剂对于酶解的影响，并用红外光谱、X 射线衍射分析其机理。结果表明[MEIM][DMP]/聚乙二醇4000（PEG4000）处理的纤维素酶解率比未处理的纤维素高78.2%，比未加表面活性剂处理的再生纤维素高6.5%。红外光谱显示有PEG4000分子特征峰出现，X射线衍射分析表明PEG4000处理再生的纤维素几乎为无定形区。因此，PEG4000参与的处理有利于进一步提高纤维素酶解率，使结晶度降低，从而酶解率提高。
채용리자액체1-갑기-3을기미서린산이갑지（[MEIM][DMP]）여표면활성제우합처리섬유소，고찰표면활성제대우매해적영향，병용홍외광보、X 사선연사분석기궤리。결과표명[MEIM][DMP]/취을이순4000（PEG4000）처리적섬유소매해솔비미처리적섬유소고78.2%，비미가표면활성제처리적재생섬유소고6.5%。홍외광보현시유PEG4000분자특정봉출현，X사선연사분석표명PEG4000처리재생적섬유소궤호위무정형구。인차，PEG4000삼여적처리유리우진일보제고섬유소매해솔，사결정도강저，종이매해솔제고。
The cellulose was coupling-treated with ionic liquid (IL),1-methyl-3-ethyl-imidazole dimethyl phosphate ([MEIM][DMP]),and surfactant. The influence of surfactants on enzymatic hydrolysis was examined,and the mechanism was analyzed by IR and XRD. The results show that the hydrolysis rate of treated-cellulose with [MEIM][DMP]/polyethylene glycol 4000(PEG4000) was 78.2%higher than that of untreated cellulose,and 6.5%higher than that of regenerated cellulose with no surfactant treatment. The IR spectrum showed PEG4000 molecular characteristics peak. The XRD analysis showed that the regenerated cellulose was almost amorphous zone with PEG4000 treatment. Therefore,it can be used to further improve the hydrolysis rate of cellulose treated with PEG4000. And the degree of crystallinity decreased,thereby increasing the rate of hydrolysis.