Self-association behavior of amphiphilic molecules based on incompletely condensed cage silsesquioxanes and poly(ethylene glycol)s

被引：18
|
作者：
Imoto, Hiroaki [1 ]
Katoh, Ryoichi [1 ]
Honda, Tomoko [2 ]
Yusa, Shin-ichi [2 ]
Naka, Kensuke [1 ]
机构：
[1] Kyoto Inst Technol, Grad Sch Sci & Technol, Fac Mol Chem & Engn, Sakyo Ku, Goshokaido Cho, Kyoto 6068585, Japan
[2] Univ Hyogo, Grad Sch Engn, Dept Appl Chem, 2167 Shosha, Himeji, Hyogo 6712280, Japan
来源：
POLYMER JOURNAL | 2018年 / 50卷 / 04期
关键词：
POLYHEDRAL OLIGOMERIC SILSESQUIOXANES; POSS; BLOCK; POLYMER; HYDROPHOBICITY; COPOLYMER;
D O I：
10.1038/s41428-017-0021-7
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polyhedral oligomeric silsesquioxane (POSS) is an important building block for constructing organic-inorganic hybrid molecules or polymers. In this work, we report amphiphilic, incompletely condensed POSSs (IC-POSSs) possessing various substituents on the seven silicon atoms and two kinds of poly(ethylene glycol)s (PEGs) with different chain lengths. The IC-POSS cores possessed comparable thermal stability to that of the completely condensed POSS (CC-POSS) analogs, despite their open cage structure. The amphiphilic IC-POSSs formed micelles of different sizes and had polydispersity indices (PDIs) that were dependent on the substituents and the PEG chain length. Additionally, the lower critical solution temperatures (LCSTs) were observed for amphiphilic IC-POSSs possessing shorter PEG chains, while aqueous solutions of those with longer PEG chains showed high transmittance even at 80 degrees C.
引用
收藏
页码：337 / 345
页数：9
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