CAJ | 학술논문

为提高分子超微滤膜材料的亲水性、抗污染性能、通量和寿命，降低膜材料制造成本，提出两亲高分子共混改性聚偏氟乙烯、聚氯乙烯、聚醚砜膜材料的基础与应用技术研究。研究中，从分子结构设计出发，采用多种活性聚合法合成了一系列具有不同组成和序列结构的两亲高分子，研究了不同组成与序列结构的两亲高分子在成膜过程中的表面富集的规律、两亲高分子在共混膜中的稳定化机制等基础问题；从成膜热力学和动力学出发实现了共混膜多层次微结构的调控，开发出多种两亲高分子合成及其共混超滤膜制备的技术，实现了膜材料规模化生产及其在自来水净化、废水处理及医疗过滤等领域的应用。
위제고분자초미려막재료적친수성、항오염성능、통량화수명，강저막재료제조성본，제출량친고분자공혼개성취편불을희、취록을희、취미풍막재료적기출여응용기술연구。연구중，종분자결구설계출발，채용다충활성취합법합성료일계렬구유불동조성화서렬결구적량친고분자，연구료불동조성여서렬결구적량친고분자재성막과정중적표면부집적규률、량친고분자재공혼막중적은정화궤제등기출문제；종성막열역학화동역학출발실현료공혼막다층차미결구적조공，개발출다충량친고분자합성급기공혼초려막제비적기술，실현료막재료규모화생산급기재자래수정화、폐수처리급의료과려등영역적응용。
To produce high performance polymer microfiltration/ultrafiltration (MF/UF) membranes with lower production cost,the amphiphilic copolymers and their corresponding blend membrane were presented and investigated. A series of amphiphilic copolymers with dif-ferent compositions and sequence structures were synthesized via living radical polymerization. The synthesized copolymers were blended into various membranes via phase inversion process. It was found that,during the phase inversion process,amphiphilic copolymer migrated sponta-neously to the membrane surface,resulting the enrichment of hydrophilic components in sur-face layer. This hydrophilic layer provided the membranes with improved hydrophilicity and fouling resistance. Meanwhile,the better compatibility between polymer base and hydrophobic components prevented the loss of amphiphilic copolymers in real application of the blend mem-branes. Based on the fundamental in structures and properties of the blend membranes,large-scale preparation of amphiphilic polymers and corresponding MF/UF blend membranes were achieved. The produced blend microporous membranes have been widely used in various areas including water purification,wastewater treatment and medical filtering,etc.