阳离子聚电解质诱导的液态前驱物过程:一种多能型仿生材料合成法
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- 英文论文题名：The Cationic Polyelectrolyte-Induce Liquid Precursor:a Versatile Methodology for Biomimetic Materials
- 论文作者：苏义平 ; 崔名芳 ; 朱建华
- 英文论文作者：Yiping Su ; Mingfang Cui ; Jianhua Zhu ; Metallurgical Reduction and Comprehensive Utilization of Resources of Key Laboratory of Ministry of Education ; Anhui University of Technology
- 年：2016
- 作者机构：安徽工业大学冶金减排与资源综合利用教育部重点实验室;
- 论文关键词：液态矿化前驱物 ; 阳离子聚电解质 ; 非平衡态晶体 ; 仿生矿化 ; 类生物形貌
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第十六分会：晶体工程
- 语种：中文
- 分类号：TB391
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第十六分会 ; 晶体工程
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：226k
- 原文格式：D
- 会议级别：全国
摘要
生物矿物的精美形貌和独特功能向来受到研究者广泛关注,生物组织通常借助基质蛋白或多糖实现对该类复合材料生长的精确调控。而在仿生领域则多借助人工合成高分子实现类似过程,虽然效率与生物体系相去甚远。在本文中,我们利用阳离子聚电解质诱导的液相过程,成功合成了二维和三维周期性图案结构及多种非平衡态超结构;过程中,聚阳离子电解质被用作过程生长调节剂,掺杂离子协同调节液态相稳定性、浸润性和流动性等,进而调节终产物的相组成和形貌,合成了多种具有光滑曲面的类"生物形貌"晶体,包括铰链状、螺旋面和类虫子等。该研究工作提供了一种合成自组装图案和"类生物"形貌结构的崭新手段,为深入研究此类图案结构的形成机理提供的理想模型。
Self-organized structural motifs and off-equilibrium superstructures have been synthesized for the first time in the cationic polyelectrolyte controlled mineralization.Poly(allylamine hydrochloride),the process-directing reagent,could effectively induce the microphase separation and formation of liquid precursor in the early stage.With the combination of synergetic doping ions,the properties of amorphous intermediates and polymorph were well controlled,which in turn resulted into various non-equilibrium structures.Especially,those smoothly curved "biomorphs" with hinged,helicoidal and wormlike morphology resembling biogenic minerals in biological systems.2D and 3D periodic patterns could also be observed due to the oscillation of pH and regents in the growing fronts.This novel procedure offers a versatile and general synthetic strategy to build a variety of novel materials.
Self-organized structural motifs and off-equilibrium superstructures have been synthesized for the first time in the cationic polyelectrolyte controlled mineralization.Poly(allylamine hydrochloride),the process-directing reagent,could effectively induce the microphase separation and formation of liquid precursor in the early stage.With the combination of synergetic doping ions,the properties of amorphous intermediates and polymorph were well controlled,which in turn resulted into various non-equilibrium structures.Especially,those smoothly curved "biomorphs" with hinged,helicoidal and wormlike morphology resembling biogenic minerals in biological systems.2D and 3D periodic patterns could also be observed due to the oscillation of pH and regents in the growing fronts.This novel procedure offers a versatile and general synthetic strategy to build a variety of novel materials.
引文
[1]Cantaert,B.;Verch,A.;Kim,Y.;Ludwig,H.Chem.Mater.2013,25:4994.
[2]Zhu,J.;Huang,L.;Cui,M.;Ma,L.Eur.J.Inorg.Chem.2015,2015:1819.
[2]Zhu,J.;Huang,L.;Cui,M.;Ma,L.Eur.J.Inorg.Chem.2015,2015:1819.