The behavior of acrylic acid–4-vinylpyridine copolymers of different architectures, namely, with gradient and block distributions of comonomer units in a chain as well as with quaternized 4-vinylpyridine units, is studied. It is shown that all the copolymers are prone to aggregation in acidic and alkaline media and that the sizes of aggregates and the regions of their stability are determined by chain microstructure. The aggregates formed in acidic media exhibit temperature sensitivity. The kinetics and mechanism of copolymer adsorption from solutions on the surface of nylon membranes are explored. It is shown that the block distribution of units substantially increases the adsorption efficiency, while the quaternization of 4-vinylpyridine units decreases the monolayer adsorption parameters.

研究了不同结构的丙烯酸-4-乙烯基吡啶共聚物的行为，即链中共聚单体单元的梯度和嵌段分布以及季铵化的4-乙烯基吡啶单元的行为。结果表明，所有共聚物在酸性和碱性介质中均易于聚集，聚集体的大小及其稳定性区域由链的微观结构决定。在酸性介质中形成的聚集体表现出温度敏感性。探索了溶液在尼龙膜表面吸附共聚物的动力学和机理。结果表明，单元的嵌段分布显着提高了吸附效率，而4-乙烯基吡啶单元的季铵化降低了单层吸附参数。