Visible Light [2 + 2] Cycloadditions of Thermoresponsive Dendronized Styryltriazines To Exhibit Tunable Microconfinement [0.03%]
可调微限制的热响应性树枝状分子 styryltriazines 的 [2+2] 环加成反应
Sijie Zhou,Mengjie Zhang,Yue Yuan et al.
Sijie Zhou et al.
Visible light-triggered photochemical reactions in aqueous media are highly valuable to tailor molecular structures and properties in an ecofriendly manner. Here we report visible light-induced catalyst-free [2 + 2] cycloadditions of thermo...
Selective Ring-Opening Polymerization of Silyl Glycidyl Ether through Organocatalysis [0.03%]
有机催化选择性开环聚合合成聚硅氧氮烷类嵌段及梯形聚合物
Jie Pang,Tao Lai,Junpeng Zhao
Jie Pang
Silyl ether constitutes a multipurpose (macro)molecular functionality for being, e.g., SuFEx-clickable and easily cleavable as a hydroxyl precursor. Its direct incorporation by anionic polymerization is challenged by its base susceptibility...
Diverse Approaches for the Difunctionalization of PPH Dendrimers, Precise Versus Stochastic: How Does this Influence Catalytic Performance? [0.03%]
PPH型树枝状分子的双官能团化反应中精确与随机方法的区别及其对催化性能的影响
Massimo Petriccone,Régis Laurent,Anne-Marie Caminade et al.
Massimo Petriccone et al.
Random difunctionalization of dendrimer surfaces, frequently employed in biological applications, provides the advantage of dual functional groups through a synthetic pathway that is simpler compared to precise difunctionalization. However,...
Microscopic Observation of the Anisotropy of the Johari-Goldstein-β Process in Cross-Linked Polybutadiene on Stretching by Time-Domain Interferometry [0.03%]
时域干涉法观测拉伸下交联聚丁二烯的Johari-Goldstein β过程各向异性
Ryo Mashita,Makina Saito,Yoshitaka Yoda et al.
Ryo Mashita et al.
The strain dependence of the Johari-Goldstein (JG)-β relaxation time, as well as the directional dependence, was systematically investigated for stretched cross-linked polybutadiene using time-domain interferometry. We found that the strai...
Aqueous Keto-Polyethylene Dispersions from Catalytic Copolymerization of Ethylene and Carbon Monoxide in Water [0.03%]
水相催化乙烯和一氧化碳共聚制备酮聚乙烯及分散液研究
Maximilian Baur,Rosa Habé,Stefan Mecking
Maximilian Baur
Water-soluble [P,O]Ni(II) catalysts enable the direct catalytic nonalternating copolymerization of fundamental comonomers ethylene and carbon monoxide (CO) in water as an environmentally friendly reaction medium. This yields stable aqueous ...
Thermal-Sensitive Supramolecular Coordination Complex Formed by Orthogonal Metal Coordination and Host-Guest Interactions for an Electrical Thermometer [0.03%]
基于正交金属配位和主客体相互作用的热致超分子配合物用于构建电子测温器
Miaomiao Yan,Yinglong Bao,Sen Li et al.
Miaomiao Yan et al.
Supramolecular coordination complexes (SCCs) are popular for their structural diversity and functional adaptability, which make them suitable for a wide range of applications. Photophysical and mechanical performance of SCCs are the most at...
Bryan W Boudouris,Yongho Joo
Bryan W Boudouris
Ameur Louhichi,Marie-Hélène Morel,Laurence Ramos et al.
Ameur Louhichi et al.
We study model near-critical polymer gelling systems made of gluten protein dispersions stabilized at different distances from the gel point. We impose different shear rates and follow the time evolution of the stress. For sufficiently larg...
Asymmetry in Polymer-Solvent Interactions Yields Complex Thermoresponsive Behavior [0.03%]
聚合物-溶剂相互作用的不对称性导致复杂的热响应行为
Satyen Dhamankar,Michael A Webb
Satyen Dhamankar
We introduce a lattice framework that incorporates elements of Flory-Huggins solution theory and the q-state Potts model to study the phase behavior of polymer solutions and single-chain conformational characteristics. Without empirically i...
Yinrui Wang,Anika Goecke,Valerian Hirschberg et al.
Yinrui Wang et al.
Previous studies have shown that the nonlinear rheological behavior of 3-arm star polymer melts in fast extensional flow is identical to that of linear polymers with the same span molecular weight, because the star polymers are highly align...