{"title":"Synthesis and Characterization of Poly(butyl acrylate-co-farnesene) by Emulsion Polymerization Technique for Pressure-Sensitive Adhesives","authors":"Lina Dayse Alcantara Rodrigues, Maurício Pinheiro Oliveira","doi":"10.1002/masy.202400098","DOIUrl":null,"url":null,"abstract":"<p>The development of new sustainable materials has been growing in the last few years, especially polymers derived from renewable monomers to replace petroleum-derived monomers in adhesive applications. In this context, copolymerization of <i>β-</i>Farnesene (Far) with <i>n</i>-butyl acrylate (BA) using different ratios of BA and Far (100/0, 80/20, and 50/50 wt/wt) is investigated by semi-bath emulsion polymerization for use in pressure-sensitive adhesives (PSA). Latexes with different BA and Far contents are obtained with good colloidal stability and a hydrodynamic diameter range of 120–140 nm. The copolymerization between Far and BA is confirmed by FT-IR and DSC analyses. As the Far content increases, both overall conversion, elongation at break, and loop tack decrease. On the other hand, the lass transition temperature (<i>T</i><sub>g</sub>), gel content, and shear strength increase. The glass transition temperature of copolymers is higher than the theoretical <i>T</i><sub>g</sub> values and is dependent on the Far contents. The use of Far provides additional insights for the production of bio-based PSAs by emulsion polymerization, which is characterized by an increase in both shear strength and cohesion. Among the proportions of BA/Far studied, the most promising results for application in PSA tapes are 80 wt% of BA and 20 wt% of Far.</p>","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"413 6","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Macromolecular Symposia","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/masy.202400098","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Materials Science","Score":null,"Total":0}
引用次数: 0
摘要
近几年来,新型可持续材料的开发日益增多,特别是在粘合剂应用中,用可再生单体衍生的聚合物取代石油衍生单体。在此背景下,我们采用半浴乳液聚合法研究了 β-法呢烯(Far)与丙烯酸正丁酯(BA)的共聚物,BA 和 Far 的不同比例(100/0、80/20 和 50/50 wt/wt)可用于压敏胶(PSA)。不同 BA 和 Far 含量的胶乳具有良好的胶体稳定性,水动力直径范围为 120-140 nm。FT-IR 和 DSC 分析证实了 Far 和 BA 之间的共聚。随着 Far 含量的增加,总转化率、断裂伸长率和环粘性都有所下降。另一方面,熔融转变温度(Tg)、凝胶含量和剪切强度都有所提高。共聚物的玻璃化转变温度高于理论 Tg 值,并且取决于 Far 含量。Far 的使用为通过乳液聚合法生产生物基 PSAs 提供了更多启示,乳液聚合法的特点是剪切强度和内聚力都会增加。在所研究的 BA/Far 比例中,最有希望应用于 PSA 胶带的是 80 wt% 的 BA 和 20 wt% 的 Far。
Synthesis and Characterization of Poly(butyl acrylate-co-farnesene) by Emulsion Polymerization Technique for Pressure-Sensitive Adhesives
The development of new sustainable materials has been growing in the last few years, especially polymers derived from renewable monomers to replace petroleum-derived monomers in adhesive applications. In this context, copolymerization of β-Farnesene (Far) with n-butyl acrylate (BA) using different ratios of BA and Far (100/0, 80/20, and 50/50 wt/wt) is investigated by semi-bath emulsion polymerization for use in pressure-sensitive adhesives (PSA). Latexes with different BA and Far contents are obtained with good colloidal stability and a hydrodynamic diameter range of 120–140 nm. The copolymerization between Far and BA is confirmed by FT-IR and DSC analyses. As the Far content increases, both overall conversion, elongation at break, and loop tack decrease. On the other hand, the lass transition temperature (Tg), gel content, and shear strength increase. The glass transition temperature of copolymers is higher than the theoretical Tg values and is dependent on the Far contents. The use of Far provides additional insights for the production of bio-based PSAs by emulsion polymerization, which is characterized by an increase in both shear strength and cohesion. Among the proportions of BA/Far studied, the most promising results for application in PSA tapes are 80 wt% of BA and 20 wt% of Far.
期刊介绍:
Macromolecular Symposia presents state-of-the-art research articles in the field of macromolecular chemistry and physics. All submitted contributions are peer-reviewed to ensure a high quality of published manuscripts. Accepted articles will be typeset and published as a hardcover edition together with online publication at Wiley InterScience, thereby guaranteeing an immediate international dissemination.