Synthesis and Bond-Dynamics of Pseudo-BlockCopolymers

拟嵌段共聚物的合成和键合动力学

• 批准号: 163842554
• 负责人: Professor Dr. Wolfgang Binder
• 金额: --
• 依托单位: Fachgruppe Experimentelle Polymerphysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/163842554?language=en
• 关键词: Synthesis; Bond; Dynamics; Pseudo; BlockCopolymers

The current proposal deals with the generation of microphase separated pseudoblockcopolymers, focusing on their dynamic behavior in the solid state, with a long-term perspective on the generation of self-healing materials. In contrast to the normally used covalent bond in blockcopolymers between immiscible polymers, hydrogen bonding systems (exerting binding strength ranging from Kassn ~ 25 M-1 till ~100,000 M-1, thus displaying a kinetic spectrum of formation/reformation ranging from ~0.01 s-1 to ~100 s-1) will be used to act as attractive force between immiscible, telechelic polymers. Several polymers ((PIB/PNB; PIB/PDMS) (polymer-abbreviations: polyisobutylene (PIB); poly(norbornene) (PNB); poly(dimethylsiloxane) (PDMS)), which display different thermal transition-temperatures (Tg) and Flory-Huggins interaction parameters () in the molecular-weight-range from 5000 g mol-1 to ~25,000 g mol-1) will be investigated, in order to study the dynamics of the resulting material-system. Dynamic-mechanical measurements, small angle x-ray scattering (SAXS), in-situ-Rheo-SAXS and solid-state NMR-spectroscopy will be used to gain information on the mobility of individual polymer chains and the nature of the hydrogen-bonds acting as molecular “glue” between them.

目前的提案涉及微相分离假嵌段共聚物的生成，重点关注它们在固态下的动态行为，并从长远角度研究自修复材料的生成。与不混溶聚合物之间的嵌段共聚物中通常使用的共价键相反，氢键系统（发挥从 Kassn ~ 25 M-1 到 ~ 100,000 M-1 的结合强度，从而显示从 ~0.01 s-1 到 ~ 100 s-1 的形成/重整动力学谱）将用于在不混溶的远爪聚合物之间充当吸引力。几种聚合物（（PIB/PNB；PIB/PDMS）（聚合物缩写：聚异丁烯（PIB）；聚（降冰片烯）（PNB）；聚（二甲基硅氧烷）（PDMS）），在 5000 g 的分子量范围内表现出不同的热转变温度 (Tg) 和 Flory-Huggins 相互作用参数 () mol-1 至 ~25,000 g mol-1) 将被研究，以研究所得材料系统的动力学。动态机械测量、小角 X 射线散射 (SAXS)、原位 Rheo-SAXS 和固态 NMR 光谱将用于获取有关单个聚合物链的迁移性以及作为聚合物链之间分子“粘合剂”的氢键性质的信息。

项目成果

Comparing solution and melt-state association of hydrogen bonds in supramolecular polymers

• DOI: 10.1039/c3py00362k
• 发表时间: 2013-01-01
• 期刊: POLYMER CHEMISTRY
• 影响因子: 4.6
• 作者: Herbst, Florian;Binder, Wolfgang H.
• 通讯作者: Binder, Wolfgang H.

Facile preparation of supramolecular (ABAC)n multiblock copolymers from Hamilton wedge and barbiturate-functionalized RAFT agents

用 Hamilton 楔和巴比妥酸盐官能化 RAFT 试剂轻松制备超分子 (ABAC)n 多嵌段共聚物

• DOI: 10.1039/c3py01482g
• 发表时间: 2014
• 期刊: Polymer Chemistry
• 影响因子: 4.6
• 作者: Barqawi;Schulz;Binder
• 通讯作者: Binder

Nanostructure and Rheology of Hydrogen-Bonding Telechelic Polymers in the Melt: From Micellar Liquids and Solids to Supramolecular Gels

熔体中氢键遥爪聚合物的纳米结构和流变学：从胶束液体和固体到超分子凝胶

• DOI: 10.1021/ma402007f
• 发表时间: 2014
• 期刊: Macromolecules
• 影响因子: 5.5
• 作者: Schröter;Herbst;Binder;Thurn-Albrecht
• 通讯作者: Thurn-Albrecht

Crystallization of Supramolecular Pseudoblock Copolymers

• DOI: 10.1021/ma400622w
• 发表时间: 2013-05
• 期刊: Macromolecules
• 影响因子: 5.5
• 作者: Elena Ostas;Tingzi Yan;T. Thurn‐Albrecht;W. Binder

Designing melt flow of poly(isobutylene)-based ionic liquids

• DOI: 10.1039/c3ta12646c
• 发表时间: 2013-09
• 期刊: Journal of Materials Chemistry
• 作者: A. Stojanovic;Clement Appiah;D. Döhler;Johanna Akbarzadeh;P. Zare;H. Peterlik;W. Binder