Phase transition behaviors of the self-assembled structures of a dihydrazide derivative

被引：0
|
作者：
Che, Xiangyang [1 ]
Zhang, Chunling [2 ]
Zhang, Chunxue [2 ]
Bai, Binglian [2 ,3 ]
Wang, Haitao [2 ]
Li, Min [2 ]
机构：
[1] Inner Mongolia Univ Nationalities, Coll Chem & Chem Engn, Tongliao, Peoples R China
[2] Jilin Univ, Inst Mat Sci & Engn, Key Lab Automobile Mat, Minist Educ, Changchun 130012, Peoples R China
[3] Jilin Univ, Coll Phys, Changchun, Peoples R China
来源：
SOFT MATERIALS | 2020年 / 18卷 / 01期
关键词：
Dihydrazide derivative; self-assembly; phase transition; CRYSTALLINE FIBER NETWORKS; RESPONSIVE PROPERTIES; GELATION BEHAVIOR; ORGANOGELS; GELS; TRANSFORMATION; DIPEPTIDE;
D O I：
10.1080/1539445X.2019.1686706
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Precipitates or xerogels of 1,3-bis[(3,4-dioctyloxy phenyl) hydrazide] phenylene (BP8-C) from ethanol or toluene were demonstrated to show three different aggregate structures depending on different cooling procedure, i.e. cubic phase and two kinds of hexagonal columnar phase (denoted as Col(h1)and Col(h2)). DSC measurement indicated that cubic-Col(h1)and Col(h1)-Col(h2)transition showed endothermic behavior while Col(h2)-Col(h1)transition showed exothermic, indicating cubic structure was the most stable. Annealing of the BP8-C/ethanol suspension or the BP8-C/toluene gel caused the gradual structural transitions from either Col(h1)to cubic or Col(h2)to cubic phase. Higher incubation temperature, longer annealing time, or polar solvent could accelerate the transitions from instability structure to stability ones in the gels.
引用
收藏
页码：67 / 73
页数：7
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