含树枝化以及线性侧链的超分子共聚物的液晶相结构调控

发布时间：2018-06-28 17:04

  本文选题：超分子共聚物 + 氢键　； 参考：《高分子学报》2017年10期

【摘要】：设计了一类由聚4-乙烯基吡啶(P4VP)、含弯曲树枝化分子12CBP以及线性分子PDP组成的三元共混体系,其中12CBP和PDP端基均为酚羟基,可与P4VP侧基的吡啶环上的N原子进行氢键复合.傅立叶变换红外光谱、示差扫描量热法、偏光显微镜、小角X射线散射和原子力显微镜等多种研究表明该共混体系为均相体系,三组分自组装形成以P4VP为主链,12CBP和PDP为超分子侧链的"无规共聚物"P4VP(12CBP)x(PDP)y(x+y=1).该超分子侧链共聚物的聚集态结构与小分子12CBP和PDP相对含量有关.当12CBP含量x≥0.5时,体系组装形成六方柱状相结构,柱子的直径随着体系中12CBP含量减少而逐渐减小.当12CBP含量0.5时,即使少量12CBP的引入也会引起体系层状相结构的破坏,体系表现为无定形状态.
[Abstract]:A kind of ternary blend system consisting of poly (4-vinylpyridine) (P4VP), including bending dendrimer 12CBP and linear molecular PDP was designed. The terminal groups of 12CBP and PDP are phenolic hydroxyl groups, which can be recombined with N atoms on the pyridine ring of P4VP side group. Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), polarizing microscope, small angle X-ray scattering and atomic force microscope (AFM) show that the blend is homogeneous. The "random copolymer" P4VP (12CBP) x (PDP) y (x yt1) was formed by self-assembly of three components with P4VP as main chain and PDP as supramolecular side chain. The aggregation structure of the supramolecular side chain copolymer is related to the relative content of 12CBP and PDP. When the content of 12CBP x 鈮，

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