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开发可生物降解的聚碳酸,并为高性能包装提供量身定制的刚性-柔性结构

Chao Zeng^1,2, JiaWei Ren¹, ZhiLin Mo¹

¹State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.

Biomacromolecules

|November 20, 2025

概括

研究人员开发了用于可持续包装的新型生物降解聚碳酸 (PBCCTs). 这些材料克服了性能-生物降解性权衡,提供了增强的机械和降解性能,具有出色的生物相容性.

科学领域:

聚合物科学聚合物科学
材料科学材料科学材料科学
可持续化学可持续化学

背景情况:

越来越多的环境问题需要替代不可降解塑料.
可生物降解的共聚合物对于开发可持续包装解决方案至关重要.
现有的共聚合物经常面临机械性能和生物降解性之间的权衡.

研究的目的:

合成和描述一系列新的刚性-柔性聚碳酸 (PBCCTs).
为了增强链条纠,克服传统共聚合物的机械生物降解性权衡.
评估新型PBCCTs的光学,机械,降解和生物相容性特性.

主要方法:

结合1,4-butanediol (BDO) 和三甲基酸盐 (TMC) 的刚性-柔性聚碳酸 (PBCCT) 的合成.
结合灵活的BDO单元,刚性环基环,以及在位分支架构.
拉伸强度,破裂时延长,撕裂强度,降解速度,血液溶解和细胞毒性的评估.

主要成果:

PBCCTs表现出可调节的高性能特性:拉力强度为20.1-35.3 MPa,破裂延伸为206.0-500.0%,撕裂强度高达104N mm-1.
聚合物共聚合物表现出明显增强的可降解性,PBCCT₇₀显示了64.49%的质量损失.
血液溶解和细胞毒性测定证实了合成的PBCCTs的良好生物相容性.

结论:

新型的刚性-柔性PBCCTs成功克服了机械-生物降解性的权衡.
这些材料具有可调节的,高性能特性,适合苛刻的应用.
由于其优越的特性和生物相容性,PBCCT是强大和可持续包装的有希望的候选者.

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