PDMS-based copolymers with polyurea blocks and 1,2,3-triazole blocks obtained by CuAAC polymerization for 3D printing

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2024-07-08 DOI:10.1016/j.reactfunctpolym.2024.106005

Kirill K. Bakanov , Sofia N. Ardabevskaia , Kseniya A. Bezlepkina , Kseniia S. Klokova , Artur E. Krupnin , Alexander I. Buzin , Dmitriy A. Khanin , Sergei A. Kostrov , Artem V. Bakirov , Fedor V. Drozdov , Sergey N. Chvalun , Aziz M. Muzafarov , Jun Zou , Elena Yu. Kramarenko , Sergey A. Milenin

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引用次数: 0

Abstract

Polydimethylsiloxanes with improved mechanical properties that can be processed by 3D printing are in high demand for scientific and practical applications. In our article, we proposed the synthesis of new PDMS copolymers with urethane and triazole fragments using the CuAAC reaction mechanism, as well as 3D printing with the obtained copolymers. Two types of copolymers, with molecular weights of 3000 and 6000 Da of PDMS block length, were prepared and characterized by GPC, IR spectroscopy, TGA, DSC, TMA, SAXS, and rheological measurements to determine their physicochemical properties. The synthesized copolymers were found to be suitable for processing by extrusion 3D printing. This demonstrated the ability to 3D print macroscale models of varying shapes and complexity. The resulting materials retained their printed shape over time.

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通过 CuAAC 聚合技术获得的具有聚脲嵌段和 1,2,3- 三唑嵌段的 PDMS 基共聚物，可用于 3D 打印

可通过三维打印加工的具有更好机械性能的聚二甲基硅氧烷在科学和实际应用中需求量很大。在我们的文章中，我们提出了利用 CuAAC 反应机理合成带有氨基甲酸酯和三唑片段的新型 PDMS 共聚物，并利用获得的共聚物进行 3D 打印。文章制备了两种分子量分别为 3000 Da 和 6000 Da 的 PDMS 嵌段共聚物，并通过 GPC、红外光谱、TGA、DSC、TMA、SAXS 和流变学测量来确定其理化性质。研究发现，合成的共聚物适用于挤出三维打印加工。这证明了三维打印不同形状和复杂程度的宏观模型的能力。所得材料可长期保持打印形状。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.