{"title":"In-situ reaction compatibilization modification of biodegradable poly (lactic acid)/poly (3-hydroxybutyrate-co-4-hydroxy-butyrate) blends by multifunctional epoxy compound","authors":"Chuang Sun, Liang Ren, Yixuan Qin, Xiangpeng Liu, Mingliang Shao, Guangming Mu, Yutong Gao, Mingyao Zhang","doi":"10.1007/s10965-025-04270-x","DOIUrl":null,"url":null,"abstract":"<div><p>Thanks to their remarkable combination of good strength and high modulus, Poly (lactic acid) (PLA) is mixed with P34HB to enhance its strength, and the chain extender ADR-4370F is selected to modify PLA/P34HB blend via in-situ reaction compatibilization. The incorporation of 0.7 phr ADR into the 70/30 wt% PLA/P34HB blend results in a significant increase of 60%, 20% and 22% in Izod impact strength, tensile strength and modulus, respectively, compared with the 70/30 wt% PLA/P34HB blend. Rheological results demonstrate that storage modulus, loss modulus, and complex viscosity enhance evidently with the elevation of ADR dosage, indicating that the improvement of melt strength is beneficial to the processing and forming of the materials. The compatibilization mechanism is investigated by infrared spectroscopy, and the epoxy groups in ADR is the most important factor to improve the compatibility and the mechanical properties of the blends.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04270-x.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Polymer Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10965-025-04270-x","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Thanks to their remarkable combination of good strength and high modulus, Poly (lactic acid) (PLA) is mixed with P34HB to enhance its strength, and the chain extender ADR-4370F is selected to modify PLA/P34HB blend via in-situ reaction compatibilization. The incorporation of 0.7 phr ADR into the 70/30 wt% PLA/P34HB blend results in a significant increase of 60%, 20% and 22% in Izod impact strength, tensile strength and modulus, respectively, compared with the 70/30 wt% PLA/P34HB blend. Rheological results demonstrate that storage modulus, loss modulus, and complex viscosity enhance evidently with the elevation of ADR dosage, indicating that the improvement of melt strength is beneficial to the processing and forming of the materials. The compatibilization mechanism is investigated by infrared spectroscopy, and the epoxy groups in ADR is the most important factor to improve the compatibility and the mechanical properties of the blends.
期刊介绍:
Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology.
As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including:
polymer synthesis;
polymer reactions;
polymerization kinetics;
polymer physics;
morphology;
structure-property relationships;
polymer analysis and characterization;
physical and mechanical properties;
electrical and optical properties;
polymer processing and rheology;
application of polymers;
supramolecular science of polymers;
polymer composites.