Macromolecules· 2026Q1
Site-Controlled Incorporation of a Single Degradable Junction in RAFT Polymers for Tailored Block and Graft Copolymers
- 0citations
- Q1SCImago
- 2026year
Short summary
A novel RAFT polymerization strategy precisely inserts a single degradable BMDO unit into block and graft copolymers, enabling targeted cleavage and dissociation of polymer chains.
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Key points
- A novel RAFT polymerization strategy precisely installs a single degradable BMDO unit in block and graft copolymers.
- The single-unit monomer insertion (SUMI) approach allows for junction-specific placement of the degradable linkage.
- The BMDO unit enables selective cleavage, leading to efficient dissociation of block copolymers and detachment of grafts.
- This method offers a modular platform for designing smart materials with triggered dissociation capabilities.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract The precise installation of cleavable junctions at defined positions within synthetic polymers remains a significant challenge, limiting the development of materials with degradation profiles akin to natural biopolymers. Herein, we report a novel strategy using reversible addition–fragmentation chain-transfer (RAFT) polymerization to insert a single 5,6-benzo-2-methylene-1,3-dioxepane (BMDO) unit precisely at the junction points of block and graft copolymers via a single-unit monomer insertion (SUMI) approach. This single ester-containing linkage enables selective cleavage, allowing efficient dissociation of block copolymers into their constituent blocks and detachment of grafts from molecular brush backbones. Our method transforms degradation from a non-specific process into a targeted, junction-specific event, providing a modular platform for the design of smart materials with triggered dissociation capabilities for potential applications in degradable surfactants, responsive coatings, and delivery systems.
The authors' abstract, as published at the source. Macromolecules, 2026 · DOI ↗
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Field: Organic Chemistry
Organic ChemistryChemistry