Recent Advances in the Preparation and Characterization of Long-chain Branched Polypropylene (LCBPP): A Review

Yu-sen Jia; Pei-qian Yu; Zhi-gang Zheng; Liu-hai Feng; Dong-xue Ren; Xing-xing Zhang; Guo-gang Liu; Rong-juan Cong; Lin-feng Chen

doi:10.11777/j.issn1000-3304.2026.25263

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Recent Advances in the Preparation and Characterization of Long-chain Branched Polypropylene (LCBPP): A Review

Review | 更新时间：2026-04-01

- Recent Advances in the Preparation and Characterization of Long-chain Branched Polypropylene (LCBPP): A Review
- Acta Polymerica Sinica Vol. 57, Issue 4, Pages: 839-855(2026)
- 作者机构：
  
  北京低碳清洁能源研究院北京 102201
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2026.25263
  CLC：
- CSTR：32057.14.GFZXB.2026.7548
- Received：03 December 2025，
  
  Accepted：05 January 2026，
  
  Online First：03 March 2026，
  
  Published：20 April 2026
- 稿件说明：
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贾喻森, 于佩潜, 郑志刚, 冯留海, 任冬雪, 张星星, 刘国刚, 丛蓉娟, 陈林枫. 长链支化聚丙烯(LCBPP)制备技术及表征方法研究进展. 高分子学报, 2026, 57(4), 839-855.

Jia, Y. S., Yu, P. Q., Zheng, Z. G., Feng, L. H., Ren, D. X., Zhang, X. X., Liu, G. G., Cong, R. J., Chen, L. F. Recent advances in the preparation and characterization of long-chain branched polypropylene (LCBPP): a review. Acta Polymerica Sinica (in Chinese), 2026, 57(4), 839-855.
贾喻森, 于佩潜, 郑志刚, 冯留海, 任冬雪, 张星星, 刘国刚, 丛蓉娟, 陈林枫. 长链支化聚丙烯(LCBPP)制备技术及表征方法研究进展. 高分子学报, 2026, 57(4), 839-855. DOI： 10.11777/j.issn1000-3304.2026.25263. CSTR： 32057.14.GFZXB.2026.7548.

Jia, Y. S., Yu, P. Q., Zheng, Z. G., Feng, L. H., Ren, D. X., Zhang, X. X., Liu, G. G., Cong, R. J., Chen, L. F. Recent advances in the preparation and characterization of long-chain branched polypropylene (LCBPP): a review. Acta Polymerica Sinica (in Chinese), 2026, 57(4), 839-855. DOI： 10.11777/j.issn1000-3304.2026.25263. CSTR： 32057.14.GFZXB.2026.7548.

摘要

长链支化聚丙烯(LCBPP)相比线型聚丙烯(PP)有更高的熔体强度，更好的热稳定性，加工温度范围更宽，具有更广泛的应用场景. 本文首先总结了LCBPP的制备方法(外加大分子单体法、直接共聚法、射线辐照法、交联制备法和熔融反应加工法)，介绍了不同制备方法的主要优缺点；其次，简述了用于测试LCBPP结构与性能的表征方法. 最后，对LCBPP未来的研究方向进行了展望.

Abstract

Long-chain branched polypropylene (LCBPP) exhibits superior melt strength

enhanced thermal stability

and a broader processing temperature window than conventional linear polypropylene (PP)

improving its suitability for diverse industrial applications. This review focuses on recent advancements in LCBPP preparation methodologies

including macromonomer incorporation

direct copolymerization

radiation-induced branching

cross-linking techniques

and reactive melt processing

with a systematic comparison of their advantages and limitations. Characterization protocols for differentiating LCBPP from linear PP architectures were also addressed. This review outlines future research priorities

emphasizing that while China's LCBPP research is gaining momentum

substantial R&D investment remains imperative to develop high-value-added materials and strengthen China's global market competitiveness.

关键词

Keywords

references

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