安徽工程大学学报
安徽工程大學學報
안휘공정대학학보
JOURNAL OF ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE(NATURAL SCIENCE)
2012年
1期
32-35
,共4页
辛烯基琥珀酸淀粉酯%制备工艺%浆料%取代度
辛烯基琥珀痠澱粉酯%製備工藝%漿料%取代度
신희기호박산정분지%제비공예%장료%취대도
octenyl succinate starch%preparation technology%sizing agent%the degree of substitution
通过正交试验,探讨了反应温度、体系pH值、反应时间和淀粉乳浓度对取代度的影响,得出辛烯基琥珀酸淀粉酯制备的最佳工艺条件为：反应温度35℃、体系pH值8.5、反应时间3h、淀粉乳浓度40%.且辛烯基琥珀酸淀粉酯的红外光谱图显示在1 570.06cm^-1和1 726.34cm^-1处出现RCOO-和〉C=O的特征吸收峰,表明淀粉分子上引入了酯基和羧酸基.
通過正交試驗,探討瞭反應溫度、體繫pH值、反應時間和澱粉乳濃度對取代度的影響,得齣辛烯基琥珀痠澱粉酯製備的最佳工藝條件為：反應溫度35℃、體繫pH值8.5、反應時間3h、澱粉乳濃度40%.且辛烯基琥珀痠澱粉酯的紅外光譜圖顯示在1 570.06cm^-1和1 726.34cm^-1處齣現RCOO-和〉C=O的特徵吸收峰,錶明澱粉分子上引入瞭酯基和羧痠基.
통과정교시험,탐토료반응온도、체계pH치、반응시간화정분유농도대취대도적영향,득출신희기호박산정분지제비적최가공예조건위：반응온도35℃、체계pH치8.5、반응시간3h、정분유농도40%.차신희기호박산정분지적홍외광보도현시재1 570.06cm^-1화1 726.34cm^-1처출현RCOO-화〉C=O적특정흡수봉,표명정분분자상인입료지기화최산기.
Through the orthogonal tests,the effects of reaction temperature,pH of reaction system,reaction time and starch concentration on the degree of substitution are discussed,and the optimum technological conditions can be determined as follows： reaction temperature 35 ℃,pH 8.5 in reaction system,reaction time 3 h and starch concentration 40%.The FT-IR spectrum of octenyl succinate starch shows the characteristic absorption peaks of RCOO-at 1570.06 cm^-1 and 〉C=O at 1726.34 cm^-1,which suggests that the ester group and the carboxylic group are introduced into the starch molecular.
