摘要
采用流变学方法研究了具有高PEO质量分数(80%)的两亲性三嵌段共聚物Pluronic F68(PEO80-PPO30-PEO80)和F108(PEO133-PPO50-PEO133)的水溶液在升温过程中的溶胶-凝胶转变过程,发现对于特定浓度的嵌段共聚物水溶液,在溶胶-凝胶转变过程中会出现一个"软凝胶"区域,通过对F68进行区域的频率扫描实验,推测了相应的内部结构.
Using the rheology method,the sol-gel transitions of amphiphilic triblock copolymers Pluronic F68(PEO80-PPO30-PEO80) and F108(PEO133-PPO50-PEO133) were studied with increasing the temperature.The "soft gel" regions were found during the sol-gel transition process for the aqueous solutions with some concentrations.It is inferred that the structure of the "soft gel" region by the frequency scanning experiment for F68 aqueous solution.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2010年第2期383-386,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20574070,20734003,50621302)
吉林省杰出青年科学基金(批准号:20070113)资助