烷基功能化聚烯丙基缩水甘油醚的制备及对PVC的增塑及抗静电作用  

Synthesis of Poly(allyl glycidyl ether)Bearing Alkyl Functional Side Groups and Its Plasticizing and Antistatic Effects for PVC

作　　者：张万斌[1] 王艳蒙 王少武 童欣 韩小倩 张策 张光华[2] 朱秀忠 ZHANG Wanbin;WANG Yanmeng;WANG Shaowu;TONG Xin;HAN Xiaoqian;ZHANG Ce;ZHANG Guanghua;ZHU Xiuzhong(Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology;Shaanxi Key Laboratory of Chemical Additives for Industry,Shaanxi University of Science&Technology,Xi’an 710021,China;School of Light Industry Science and Engineering,Qi Lu University of Technology(Shandong Academy of Sciences),Jinan 250353,China)

机构地区：[1]陕西科技大学陕西省轻化工助剂化学与技术协同创新中心 [2]陕西科技大学陕西省轻化工助剂重点实验室,西安710021 [3]齐鲁工业大学(山东省科学院)轻工科学与工程学院,济南250353

出　　处：《高等学校化学学报》2021年第9期2961-2967,共7页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:51803111,11904220);陕西省自然科学基金(批准号:2019JQ-786,2020GY-232)资助.

摘　　要：利用阴离子开环聚合(AROP)及巯基-烯点击反应相结合的路线构筑了一种新型烷基功能化聚醚,考察了其对聚氯乙烯(PVC)的增塑及抗静电作用.首先,以烯丙基缩水甘油醚为单体,利用AROP制备聚烯丙基缩水甘油醚(PAGE)中间产物;然后,以PAGE为前驱体,借助巯基-烯点击反应将柔性烷基引入其侧链,获得烷基功能化聚烯丙基缩水甘油醚(PAGE_(butane))目标产物.核磁共振波谱(NMR)及凝胶渗透色谱(GPC)结果表明,所得聚合物结构与设计一致,且PAGE的分子量可通过改变单体与引发剂的投料比灵活调控.热性能研究结果显示柔性烷基的键入导致PAGE的玻璃化转变温度(Tg)进一步降低.PAGE_(butane)的T_(g)为−74.97℃,且具有较好的热稳定性.PAGE_(butane)在不损失PVC强度的同时可明显提升其韧性,同时可有效降低其表面电阻率,产生一定的抗静电效果.与邻苯二甲酸二(2-乙基)己酯(DOP)增塑剂相比,PAGE_(butane)体现出更优异的耐抽出及耐挥发性.A novel alkyl functionalized polyether was synthesized by combination of anionic ring-opening polymerization(AROP)and thiol-ene click reaction.Afterwards,its plasticizing and antistatic effects for PVC were investigated.Firstly,poly(allyl glycidyl ether)(PAGE)intermediate product was obtained via AROP by using allyl glycidyl ether as a monomer and t-BuOK as an initiator.Then,PAGE was used as a precursor and flexible alkyl groups were introduced by employing thiol-ene click reaction,and PAGE_(butane)target product was obtained finally.Nuclear magnetic resonance(NMR)and gel permeation chromatography(GPC)measurements verified that the structure of resultant polymer was consistent with the design,and the molecular weight of PAGE can be flexibly tailored by varying the feed ratio of monomer to initiator.The studies on the thermal properties suggest that with the incorporation of alkyl groups,the glass transition temperature(Tg)decreased accordingly,and the T_(g)for PAGE_(butane)was−74.97℃.PAGE_(butane)exhibit good thermal stability.PAGE_(butane)could improve the toughness of PVC obviously without sacrificing its strength.Meanwhile,it could effectively reduce the surface resistivity of PVC and act as an antistatic agent.As compared to bis(2-ethylhexyl)phthalate(DOP),PAGE_(butane)exhibited enhanced resistance to extraction and volatility.

关 键 词：增塑剂 抗静电剂 聚醚 阴离子开环聚合 巯基-烯反应 

分 类 号：O633.11[理学—高分子化学]