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The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the...
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Acceptorless Dehydrogenative Polymerization.

Xin Liu1, Jessica L Lathrop1, Garret M Miyake1

  • 1Department of Chemistry, Colorado State University, Center Ave, Fort Collins, Colorado, 80523, USA.

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|March 28, 2026
PubMed
Summary
This summary is machine-generated.

Acceptor-less dehydrogenative polymerization (ADP) offers a sustainable method for creating diverse polymers from simple alcohols and amines. This green chemistry approach uses transition-metal catalysts, producing only hydrogen as a byproduct.

Keywords:
Acceptor‐less dehydrogenative polymerizationCatalysisChemically recyclable polymersSustainabilityTransition‐metal complex

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Area of Science:

  • Polymer Chemistry
  • Catalysis
  • Materials Science

Background:

  • Developing polymerization strategies for targeted material properties is crucial.
  • Acceptor-less dehydrogenative polymerization (ADP) is a novel step-growth polymerization technique.

Purpose of the Study:

  • To review the mechanistic foundations of ADP.
  • To highlight catalytic systems and polymer architectures enabled by ADP.
  • To identify challenges and opportunities in ADP for green macromolecular design.

Main Methods:

  • ADP utilizes transition-metal catalysts to mediate sequential substrate dehydrogenations and condensations.
  • It builds upon established small-molecule dehydrogenation chemistry.
  • This method synthesizes polymers from unactivated alcohols and amines.

Main Results:

  • ADP enables the synthesis of polyesters, polyamides, polyurethanes, and polyureas.
  • Molecular hydrogen is the sole byproduct, promoting sustainability.
  • Diverse, high-performance polymers are accessible from readily available feedstocks.

Conclusions:

  • ADP represents an efficient and sustainable approach to polymer synthesis.
  • It offers a platform for green and circular macromolecular design.
  • Further development is needed to address challenges and unlock future opportunities.