侧链含蒽可光交联聚芳醚酮的制备与表征  

Preparation and characterization of photo-crosslinkable polyetherketoneketone containing anthracene group on a side chain

作　　者：田炎鑫 张辉 李佳 刘攀 何禹林 李明 TIAN Yanxin;ZHANG Hui;LI Jia;LIU Pan;HE Yulin;LI Ming(Jilin Province Key Laboratory of Carbon Fiber Development and Application,College ofChemistry and Life Science,Changchun University of Technology,Changchun 130012,China)

机构地区：[1]长春工业大学,化学与生命科学学院,吉林省碳纤维开发与应用重点实验室,长春130012

出　　处：《功能材料》2020年第7期7202-7207,共6页Journal of Functional Materials

基　　金：中国国家自然科学基金会资助项目(21644003,21704006);吉林省自然科学基础基金资助项目(20190201280JC,20190201301JC);吉林省大学生创新创业项目资助项目(201910190047)。

摘　　要：聚芳醚酮是一种具有高热稳定性、优异的机械性能和化学稳定性的特殊材料。但是,商品化的聚芳醚酮热塑性塑料由于其高的玻璃化转变温度和不溶性而难以加工。聚芳醚酮的应用由于自身的缺点而受到限制。因此,制备具有良好加工性能并且可以保持良好热稳定性的聚芳醚酮是关键的一步。合成了一系列具有不同蒽含量的光交联聚芳醚酮。该光交联过程是基于蒽环进行[4+4]-环加成反应,由365 nm紫外光引发且不需要光引发剂的。这个过程非常迅速和方便。所制备的聚芳醚酮是一种低分子量前体聚合物,具有较低的玻璃化转变温度和良好的溶解性。因此,聚合物很容易被加工。加工成型后利用紫外光引发光交联反应形成网状聚合物。通过DSC和TGA分析,与未交联聚合物相比,交联后的聚芳醚酮表现出良好的热稳定性,其玻璃化温度和热分解温度明显升高。Poly(aryl ether ketone)is a special material that have high heat stability,excellent mechanical properties and chemical stability.Unfortunately,the commercial poly(aryl ether ketone)thermoplastic was hardly processed due to its high glass transition temperature and insolubility.It is a very existing challenge for the poly(aryl ether ketone)'s applications that were limited for their disadvantage.Therefore,the key step to prepare the poly(aryl ether ketone)with easy processability and excellent properties.In this paper,a series of photo-crosslinking poly(aryl ether ketone)with different anthracene ratios were prepared.The photo-crosslinking process was based on[4+4]-cycloaddition of the anthracene middle rings initiated by 365 nm UV light without photo-initiator.This process was very quick and convenient.The prepared poly(aryl ether ketone)was lower molecular weight polymers,which had lower glass transition temperatures and good solubility.So,polymer would become easily processed.The photo-crosslinking reaction was initiated by UV light to form the network polymer after machine shaping.From DSC and TGA data analysis,compared with uncross-linking polymer,the poly(aryl ether ketone)exhibited good thermal stability after crosslinking.The glass transition temperature and thermal decompose temperature were obviously increased.

关 键 词：聚芳醚酮 光交联 易加工性 热稳定性 

分 类 号：O631[理学—高分子化学] TQ322.4[理学—化学]