短链支链聚乙烯聚酯节段共聚物

IF 4.1 2区化学 Q2 POLYMER SCIENCE

Polymer Pub Date : 2025-05-30 DOI:10.1016/j.polymer.2025.128572

Charlotte M. Barker , Timothy P. Chase , Rui Zhang , Timothy E. Long

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引用次数: 0

摘要

本文介绍了羟基远旋聚乙烯（HTPE）大单体与1,2-辛烷二醇（12OD）和丁二酸二甲酯（DMS）熔融缩聚合成的聚（乙烯-co-1,2-辛二酸）节段聚乙烯（PE）嵌段共聚物的合成和表征。合成了不同PE含量（90、75、60、50和25 wt.%）的共聚物，并对其热、机械和形态性能进行了表征。12OD的引入破坏了结晶性，有效地提高了断裂伸长率，特别是对于PE含量较高的分段共聚物。PE含量的增加提高了材料的力学性能，而聚酯含量的增加降低了材料的结晶度，促进了不同聚酯热转变的出现。这些共聚物提供了化学回收的潜力，聚酯段作为解聚点，从而有助于可持续的材料解决方案和生命周期结束（EOL）回收策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Short chain branched polyethylene polyester segmented copolymers

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Short chain branched polyethylene polyester segmented copolymers

This work presents the synthesis and characterization of poly (ethylene-co-1,2-octylene succinate) segmented polyethylene (PE) block copolymers synthesized via melt polycondensation of hydroxy-telechelic polyethylene (HTPE) macromonomers with 1,2-octane diol (12OD) and dimethyl succinate (DMS). Copolymers were synthesized with varying PE content (90, 75, 60, 50, and 25 wt%) and characterized for thermal, mechanical, and morphological properties. The introduction of 12OD disrupted crystallinity and effectively enhanced elongation at break, particularly for segmented copolymers with higher PE content. Increasing PE content improved mechanical properties, while higher polyester content reduced crystallinity and promoted the emergence of distinct polyester thermal transitions. These copolymers offer potential for chemical recycling with polyester segments serving as depolymerization points, thus contributing to sustainable material solutions and end of life (EOL) recycling strategies.

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来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.