Polymer Chain Modification via HAT Chemistry and Its Application in Graft Copolymer Synthesis [0.03%]
HAT化学法改性聚合物链及其在接枝共聚物合成中的应用
Manish Kumar,Maxime Michelas,Cyrille Boyer
Manish Kumar
Hydrogen atom transfer (HAT) chemistry has emerged as a powerful tool for selective molecular functionalization, with significant applications in the pharmaceutical and agricultural industries. More recently, HAT has been explored in polyme...
Ali Sattari,Sanghee Yang,Timothy P Lodge
Ali Sattari
The fusion kinetics of block copolymer micelles in dilute solutions have been investigated. As a model system, 1,2-polybutadiene-block-poly(ethylene oxide) micelles in the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate have been...
Reëntanglement Dynamics in Polymer Melts Can Be Explained by Fast Dangling End Retraction without Resorting to Nonuniversality [0.03%]
聚合物熔体中的重新缠结动力学可以通过快速的悬垂末端回缩来解释，无需借助非普适性理论
Andrés Córdoba,Diego Becerra,Jay D Schieber
Andrés Córdoba
Recent molecular dynamics simulations of entangled polymer melts suggest that chains reëntangle on the (Rouse) time scale of chain retraction, rather than on the longest, disengagement relaxation time, upon cessation of flow [O'Connor et a...
Recycling Polyester and Polycarbonate Plastics with Carbocation Lewis Acidic Organocatalysts [0.03%]
用碳正离子路易斯酸有机催化剂回收涤纶和聚碳酸酯塑料
Nan Wang,Qiao Zhang,Zhiqiang Sun et al.
Nan Wang et al.
The effective management of plastic waste is critical for environmental sustainability. This work explores the use of carbocation catalysts for the recycling of common polyesters and polycarbonates through alcoholysis. We demonstrate comple...
Accelerated Self-Healing and Property Recovery in Brush Particle Solids Featuring Brush Dispersity [0.03%]
具有刷分散性的刷粒子固体的加速自愈和性能恢复
Hanshu Wu,Yunping Shi,Ting-Chih Lin et al.
Hanshu Wu et al.
Brush particles, hybrid materials consisting of polymer chains tethered to particle surfaces, offer tunable properties that make them promising candidates for advanced functional materials. This study investigated the role of chain dispersi...
Polystyrene-Br End-Group Modification via Electrolysis: Adjusting Hydrogenation vs Coupling Selectivity [0.03%]
通过电解进行聚苯乙烯-br端基改性：调整加氢与偶联的选择性
Alessandro Zampieri,Felix Schnaubelt,Khidong Kim et al.
Alessandro Zampieri et al.
Atom transfer radical polymerization (ATRP) enables the precise synthesis of polymers with well-defined architectures, controlled molecular weights, and low dispersity. However, the halogen end-groups inherent to ATRP polymers can pose chal...
N-Amino Norbornene Imides as Scalable Monomers for Living Ring-Opening Metathesis Polymerization [0.03%]
用于活性环氧化学反应聚合的可扩展单体N-氨基降冰片烯酰亚胺
Ijaj Ahmed,Indradip Mandal,Rafael V M Freire et al.
Ijaj Ahmed et al.
Ring-opening metathesis polymerization (ROMP) is a well-established polymerization method that uses strained cyclic olefins to produce polymers with controlled molecular weight and dispersity suitable for aggregation in solution, leading to...
Carbenium-Based Cationic Ring-Opening Polymerization of CO2-Based Disubstituted δ-Valerolactone [0.03%]
基于碳正离子的CO2基二取代δ-戊内酯阳离子开环聚合
Yuling Lin,Kaihao Chen,Tianwen Bai et al.
Yuling Lin et al.
The challenging ring-opening homopolymerization of α-ethylidene-δ-vinyl-δ-valerolactone (EVL), derived from CO2 and 1,3-butadiene, has aroused extensive attention in consideration of economic efficiency and functionalization potential. I...
SANS and SAXS Investigation of the Melt State Structure in Disentangled Ultrahigh Molecular Weight Polyethylene [0.03%]
解缠超高分子量聚乙烯熔体状态结构的SANS和SAXS研究
Aakash Sharma,Margarita Kruteva,Lutz Willner et al.
Aakash Sharma et al.
Disentangled ultrahigh molecular weight polyethylene exhibits a time-dependent increase in rheology modulus when molten. This originates from its kinetically evolving heterogeneous microstructure consisting of disentangled and entangled reg...
Polypropylene Covalent Adaptable Networks with Full Cross-Link Density Recovery after Reprocessing: Development by Free-Radical Reactive Processing with Resonance-Stabilized, Aromatic Disulfide Cross-Linkers [0.03%]
通过自由基活性加工法制备带共振稳定芳香二硫键交联剂的全交联密度恢复聚丙烯共价可调网络材料研究进展
Yen-Wen Huang,Mathew J Suazo,Stephanie M Barbon et al.
Yen-Wen Huang et al.
A single-step method that produces percolated, dynamic covalent cross-links integrated into the PP homopolymer has not been previously demonstrated. Here, we synthesized covalent adaptable networks (CANs) from polypropylene (PP) homopolymer...