文章摘要
可降解功能性聚合物多孔材料的制备与表征
Preparation of Degradable Functional Polymeric Porous Materials by High Internal Phase Emulsions Polymerization
  
DOI:10.16865/j.cnki.1000-7555.2018.03.002
中文关键词: 聚合物基多孔材料  高内相乳液聚合  可降解大分子交联剂
英文关键词: polymeric porous material  high internal phase emulsions  degradable macro-crosslinker
基金项目:国家自然科学基金青年基金资助项目(21304010);江苏省自然科学优秀青年基金资助项目(BK20170056);江苏高校优势学科建设工程(PAPD)
作者单位
宋肄业,孙爱斌,黄文艳,薛小强,柏 涛,杨宏军,蒋必彪 江苏环境友好高分子材料重点实验室 常州大学材料科学与工程学院 江苏省光伏科学与工程协同创新中心 常州大学怀德学院,江苏 常州 213164 
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中文摘要:
      通过己内酯(CL)和甲基丙烯酸缩水甘油酯(GMA)共聚合成可降解大分子交联剂,将其应用于高内相乳液聚合制备可降解聚合物多孔材料。在此基础上,引入端双键的聚甲基丙烯酸二甲氨基乙酯(PDMAEMA)大分子单体共聚,制备含功能链段的可降解聚合物多孔材料。用核磁共振、傅里叶变换红外光谱和扫描电镜等对大分子交联剂、大分子单体及多孔材料进行分析和表征。结果表明,合成的大分子交联剂相对分子质量为8100,残留双键含量为GMA结构单元的20%。当大分子交联剂含量为单体质量的1/10时,体系可以形成稳定的高内相乳液,经聚合可得到内部孔洞丰富、泡孔直径为20~22μm 的可降解聚合物多孔材料。引入端双键的PDMAEMA大分子单体后,所得聚合物多孔材料孔壁泡孔直径为10~15μm,微孔尺寸为5~8μm,其可在碱性溶液中水解。
英文摘要:
      The oxyanionic copolymerization of ε-caprolactone (CL) and glycidyl methacrylate (GMA) was employed to synthesize a biodegradable vinyl-functional polymer, which subsequently performed as macro-crosslinker for the biodegradable polymeric porous materials. A vinyl-termed poly (2- (dimethylamino) ethyl methacrylate) (PMDMAEMA) was also synthesized to endow the porous materials functionality. The structures of macro-crosslinker and macro-monomer were confirmed by nuclear magnetic resonance spectrometer (NMR) and Fourier transform infrared spectroscopy (FT-IR). The synthesized polymeric porous materials were analyzed by scanning electron microscope (SEM). The results show that the molecular weight for the synthesized macro-crosslinker with 20% unreacted vinyl groups was 8100. When the mole ratio of macro-crosslinker to monomer is 1/10, the resulted polymeric porous materials were of uniform pores with the diameter of 20~22 nm. Using PDMAEMA as macro-monomer, the diameter of pores wall is between 10~15 μm, and the size of holes is between 5~8 μm. This polymeric porous material can be partially hydrolyzed in alkaline solution.
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