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用碳量子点作为催化剂在水性介质中的超快可见光诱导ATRP及其用于3D打印的应用

Liang Qiao¹, Mengjie Zhou¹, Ge Shi¹

¹Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.

Journal of the American Chemical Society

|May 26, 2022

概括

研究人员开发了一种使用碳量子点 (CQD) 进行原子转移基聚合 (ATRP) 的超快可见光聚合系统. 这一突破使得快速3D打印水凝具有高精度和光发.

科学领域:

聚合物化学
材料科学
摄影化学

背景情况:

光诱导原子转移激素聚合 (ATRP) 适用于聚合物网络,但由于增材制造中的速度较慢而受到限制.
开发更快的ATRP方法对于推进3D打印技术至关重要.

研究的目的:

将碳量子点 (CQD) 引入水性ATRP以实现超快的聚合.
展示ATRP在使用数字光处理 (DLP) 的水凝3D打印中的首次应用.

主要方法:

使用CQD在水中创建可见光诱导的ATRP系统.
优化聚合条件以实现高单体转化和低聚分散指数 (PDI).
用于3D打印水凝物体的数字光处理 (DLP).

主要成果:

在不到1分钟的时间内实现了>90%的单体转化,PDI<1.25.
通过使用CQD介导的ATRP系统成功打印了具有很好的尺寸精度的3D水凝物体.
嵌入的CQD为打印的水凝赋予了稳定的光发特性.

结论:

通过CQD介导的可见光ATRP提供了用于凝制造的超快速聚合平台.
这种方法代表了3D打印功能性和响应刺激的水凝材料的新方法.
开发的系统为复杂的聚合物结构的先进增材制造开辟了新的途径.

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