CAJ | 학술논문

两亲嵌段聚合物通常用在现代水性涂料配方中充当分散剂、消泡剂和流变控制剂等关键助剂,而且也是水性树脂乳液聚合技术的重要乳化剂品种,可以规避小分子乳化剂易于在界面富集而导致涂膜耐水性较差的缺点。通过大分子引发剂的原子转移自由基聚合（ATRP）来制备一系列聚氧乙烯与聚丙烯酸丁酯嵌段的非离子型两亲共聚物PEO-b-PBA。采用Wilhelmy吊片法、动态光散射和透射电镜（TEM）等手段详细研究了此类两亲聚合物水溶液的表面张力和聚集体粒径以及微观形貌,并就其与非离子表面活性剂TX-100的起泡与乳化性能进行了对比分析。
량친감단취합물통상용재현대수성도료배방중충당분산제、소포제화류변공제제등관건조제,이차야시수성수지유액취합기술적중요유화제품충,가이규피소분자유화제역우재계면부집이도치도막내수성교차적결점。통과대분자인발제적원자전이자유기취합（ATRP）래제비일계렬취양을희여취병희산정지감단적비리자형량친공취물PEO-b-PBA。채용Wilhelmy조편법、동태광산사화투사전경（TEM）등수단상세연구료차류량친취합물수용액적표면장력화취집체립경이급미관형모,병취기여비리자표면활성제TX-100적기포여유화성능진행료대비분석。
Amphiphilic block copolymers are commonly be used as key additives such as dispersant, defoamer and rheological additive in modern aqueous coatings fornaulation. They can also be used as important emulsifier in emulsion polymerization of aqueous resin, avoiding the shortcoming of small molecular emulsifier enriching in the interface and causing poor water resistance. A series of nonionic amphiphilic block copolymers of polyethylene oxide and polybutyl acrylate （PEO-b-PBA） are prepared through atom transfer radical polymerization initiated by macromolecular initiator. This paper studies the surface tension, aggregate particle size and micro-morphology of the solution of the arnphiphilic block copolymer by the means of Wilhelmy Plate, Dynamic Light Scattering and Transmission Electron Microscope （TEM） and comparatively analyzes the lbaming and emulsifying properties of the amphiphilic block copolymers and the nonionic surfactant TX-100.