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聚合诱导微相分离ABC Triblock共聚物为3D打印纳米结构材料的共聚物

Xiaobing Shi¹, Yin Yao², Jin Zhang³

¹Cluster for Advanced Macromolecular Design, School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia.

Small (Weinheim an der Bergstrasse, Germany)

|September 4, 2023

概括

本研究探讨使用AB双块共聚物在聚合诱导微相分离 (PIMS) 中用于3D打印纳米结构材料. 块序列和组成控制纳米结构形态和材料特性.

科学领域:

聚合物化学聚合物化学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

聚合诱导微相分离 (PIMS) 是创建纳米结构材料的关键方法.
之前的PIMS研究主要使用同聚合物作为宏分子链转移剂 (macroCTAs).
需要先进的PIMS技术来实现定制纳米结构材料的3D打印.

研究的目的:

调查AB双块共聚合物的使用作为PIMS中的宏CTA用于3D打印.
系统地研究双块共聚合物组成和块序列如何影响纳米结构的形成.
了解这些因素对3D打印材料散装性能的影响.

主要方法:

在PIMS中使用AB双块共聚物作为宏CTA.
系统地改变双块共聚合物组成 (A / B 块比).
研究区块序列对微相分离和由此产生的形态学的影响.

主要成果:

通过操纵A/B块比,成功控制纳米领域的形态和大小.
证明了区块序列显著改变了微相分离,并导致了不同的形态.
确定了相互作用参数 (χAB, χBC, χAC) 的变化是依赖序列形态的原因.
建立了区块序列/组成和热力学,拉伸性和膨胀性质之间的强烈相关性.

结论:

AB双块共聚合物是设计3D打印PIMS系统的有效宏观CTA.
块序列是PIMS中控制纳米结构形态的一个关键设计参数.
这种方法可以合理设计具有可调节性质的3D打印纳米结构材料.

关键词:

通过3D打印打印3D打印.区块共聚合物区块共聚合物纳米结构是一种纳米结构.

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