CAJ | 학술논문

通过乳液聚合法和无皂乳液聚合法制备了聚苯乙烯/丙烯酸正丁酯/丙烯酸微球.讨论了乳化剂用量、引发剂用量、功能单体、软硬单体用量比等对微球粒径和形态的影响.利用扫描电子显微镜(SEM)、傅里叶变换红外光谱仪(FTIR)对微球的粒径、形貌和表面基团进行分析.红外光谱表明,实验室所制备的聚苯乙烯/丙烯酸正丁酯/丙烯酸微球表面存在丰富的羧基.利用竖片生长法得到自组装的多层胶体微球薄膜.通过对薄膜的反射光谱测量,发现随着湿度的增加,峰位会产生3nm左右的红移.
통과유액취합법화무조유액취합법제비료취분을희/병희산정정지/병희산미구.토론료유화제용량、인발제용량、공능단체、연경단체용량비등대미구립경화형태적영향.이용소묘전자현미경(SEM)、부리협변환홍외광보의(FTIR)대미구적립경、형모화표면기단진행분석.홍외광보표명,실험실소제비적취분을희/병희산정정지/병희산미구표면존재봉부적최기.이용수편생장법득도자조장적다층효체미구박막.통과대박막적반사광보측량,발현수착습도적증가,봉위회산생3nm좌우적홍이.
In the paper, poly(styrene/n-butyl acrylate/acrylic acid) microspheres were prepared by the emulsion polymerization and the soap-free emulsion polymerization. The influence of emulsifier content、initiator content、functional monomer and the content ratio of soft and hard monomers on the microspheres radius and conformation were discussed. The radius、morphology and surface groups of the microspheres were analyzed by means of SEM and FTIR. The microspheres were assembled into compact colloidal crystal films by vertical growth method. The reflectance spectra of the film (280nm) under 30% and 90%humidity were measured respectively, and it was found that there were about 3nm red-shift of the wavelength of the peak with the increase of the humidity.