真空一锅法合成丙烯酸类超吸水树脂  

Vacuum synthesis of starch graft poly(acrylic acid) for super absorbent polymer via a one-pot process

作　　者：雷统席[1,2] 蒋盛军[3] 曹阳[1] 王江[1] 

机构地区：[1]海南大学海南优势资源化工材料应用技术教育部重点实验室,海南海口570228 [2]海胶集团深加工产业园经纬分公司,海南海口570000 [3]中国热带农业科学院品种资源研究所,海南儋州571737

出　　处：《弹性体》2013年第2期43-46,共4页China Elastomerics

基　　金：海南省重点科技计划(ZDXM20100061);海南省自然科学基金(511106);国家现代农业产业技术体系资助(nycytx-17);国家自然科学基金(50863002)

摘　　要：以丙烯酸与木薯淀粉为主要原料,采用一锅法,在真空条件下合成了木薯淀粉-g-丙烯酸超吸水树脂(CS-SAP)和聚丙烯酸超吸水树脂(PAA)。接枝反应树脂结构经红外光谱(FTIR)、X-射线衍射(XRD),热重-差热扫描(TG-DSC)和扫描电镜(SEM)表征,考察了真空度对CS-SAP吸水能力与接枝效率的影响,结果表明,真空度加大,树脂吸水能力上升,接枝效率升高;在相同工艺条件下,PAA的吸水能力远低于CS-SAP,该工艺配方更适合制备CS-SAP。Super absorbent polymers were successfully prepared from Cassava starch and acrylic acid under vacuum via a one-pot process. The structure of CA-SAP,PAA were characterized by FTIR, XRD, TC--DSC and SEM. Effect of vacuum dose on absorbency and graft effective of CS-SAP were investigated. The result showed that the vacuum dose higher, the absorbent and the graft effective higher. This technology didn＇t suit to prepare PAA because of its water absorbency ability lower than that of CS-SAP under the same condition.

关 键 词：真空一锅法 淀粉 丙烯酸 接枝效率 超吸水树脂 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]