A method for preparing water soluble cyclic polymers

Optimisation of the dibromomaleimide (DBM) platform for native antibody conjugation by accelerated post-conjugation hydrolysis

Dibromomaleimide (DBM) reagents are described which hydrolyse rapidly post-conjugation, representing an optimised platform for homogeneous and stable antibody conjugation.

A straightforward approach for the one-pot synthesis of cyclic polymers from RAFT polymers via thiol–Michael addition

A straightforward approach for the synthesis of cyclic polymers in a one-pot reaction.

Advanced Developments in Cyclic Polymers: Synthesis, Applications, and Perspectives

Due to the topological effect, cyclic polymers demonstrate different and unique physical and biological properties in comparison with linear counterparts having the same molecular-weight range. With advanced synthetic and analytic technologies, cyclic polymers with different topologies, e.g. multicyclic polymers, have been reported and well characterized. For example, various cyclic DNA and related structures, such as cyclic duplexes, have been prepared conveniently by click chemistry. These types of DNA have increased resistance to enzymatic degradation and have high thermodynamic stability, and thus, have potential therapeutic applications. In addition, cyclic polymers have also been used to prepare organic-inorganic hybrids for applications in catalysis, e.g. catalyst supports. Due to developments in synthetic technology, highly pure cyclic polymers could now be produced in large scale. Therefore, we anticipate discovering more applications in the near future. Despite their promise, cyclic polymers are still less explored than linear polymers like polyolefins and polycarbonates, which are widely used in daily life. Some critical issues, including controlling the molecular weight and finding suitable applications, remain big challenges in the cyclic-polymer field. This review briefly summarizes the commonly used synthetic methodologies and focuses more on the attractive functional materials and their biological properties and potential applications.

Cyclic polymers based on UV-induced strain promoted azide–alkyne cycloaddition reaction

A unique ring-closure method was developed for the preparation of cyclic polymers based on the combination of atom transfer radical polymerization and UV-induced strain promoted azide–alkyne cycloaddition reaction.