U.S.-Hungary Materials Research: Effects of Polymer Architecture on the Aggregation Behavior of Amphiphilic Block Copolymers in Water

美国-匈牙利材料研究：聚合物结构对两亲性嵌段共聚物在水中聚集行为的影响

• 批准号: 0099682
• 负责人: Rudolf Faust
• 金额: $ 3.73万
• 依托单位: University of Massachusetts Lowell
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-02-15 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0099682&HistoricalAwards=false
• 关键词: U.S.; Hungary; Materials; Research; Effects

INT 0099682Faust, RudolfThis U.S.-Hungarian research project between Rudolf Faust at the University of Massachusetts, Lowell, and his partner Miklos Zsuga of Lajos Kossuth University, Debrecen, features synthesis of novel amphiphilic block copolymers with non-linear architectures by living cationic polymerization and the study of architectural effects on their aggregation behavior. Building upon their previously developed methodologies that employ static light and dynamic light scattering, the researchers intend to investigate the architectural effects on structural parameters such as aggregation number, overall size, core, and shell dimensions of block copolymer micelles in water at different temperatures. Their results may yield some relatively inexpensive amphiphiles and non-ionic surfactants with many potential applications, but for which structure must be better understood to optimize performance.Above the critical micelle concentration in dilute aqueous solutions, amphiphilic block copolymers self-assemble into micelles with a hydrophobic insoluble core and a hydrophilic shell. The U.S.-Hungarian team maintains that block copolymer architecture (star-shaped, H-shaped, graft etc.) is an important parameter in micelle formation. With this in mind, they intend to synthesize non-linear block architectures consisting of hydrophobic polyisobutylene (PIB) and hydrophilic poly(methyl vinyl ether) (PMeVE) segments. They expect resulting amphiphilic star-block copolymers to serve as model polymers for characterizing architecture/property relationships of macromolecular amphiphiles and non-ionic surfactants. This polymer research project fulfills the program objective of advancing scientific knowledge by enabling experts in the United States and Central Europe to combine complementary talents and share research resources in areas of strong mutual interest and competence.

INT 0099682FAUST，鲁道夫This，美国马萨诸塞大学Rudolf Faust，Lowell，Lowell和他的搭档Lajos Kossuth University的Miklos Zsuga，Debrecen的Miklos Zsuga之间，具有新颖的Amphiphilic Blockers与非线性的Policyratectruly by-lineareartericatiziane cocyatiation cocyatiation cocatiation cocatiation and the conterication conterication cocyiates and the consematization和他的合作伙伴Miklos Zsuga研究建筑对其聚合行为的影响。 研究人员基于其先前开发的方法，这些方法采用了静态的光线和动态光散射，打算研究对结构参数的建筑影响，例如聚集数，整体大小，核心和壳体尺寸，在不同温度下水中的嵌段共聚物胶束的层。它们的结果可能会产生一些具有许多潜在应用的相对廉价的两亲物和非离子表面活性剂，但必须更好地理解结构以优化性能。在稀溶液中，临界胶束浓度在稀有水溶液中，两亲和块共聚物在胶束中以胶束为组件，并用胶质组合。疏水不溶性核心和亲水性壳。 美国 - 匈牙利队认为，阻止共聚物结构（星形，H形，移植物等）是胶束形成的重要参数。 考虑到这一点，他们打算合成由疏水聚异生（PIB）和亲水性聚（PMEVE）段组成的非线性嵌段结构。他们预计，产生的两亲性星状共聚物将用作模型聚合物，以表征大分子两亲和非离子表面活性剂的结构/性质关系。该聚合物研究项目实现了计划的目标，即通过使美国和中欧的专家能够结合互补才能并在浓厚的共同利益和能力领域中共享研究资源来促进科学知识。