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Olefin metathesis and quadruple hydrogen bonding: a powerful combination in multistep supramolecular synthesis.

ABSTRACT: We show that combining concepts generally used in covalent organic synthesis such as retrosynthetic analysis and the use of protecting groups, and applying them to the self-assembly of polymeric building blocks in multiple steps, results in a powerful strategy for the self-assembly of dynamic materials with a high level of architectural control. We present a highly efficient synthesis of bifunctional telechelic polymers by ring-opening metathesis polymerization (ROMP) with complementary quadruple hydrogen-bonding motifs. Because the degree of functionality for the polymers is 2.0, the formation of alternating, blocky copolymers was demonstrated in both solution and the bulk leading to stable, microphase-separated copolymer morphologies.

SUBMITTER: Scherman OA

PROVIDER: S-EPMC1832257 | biostudies-literature | 2006 Aug

REPOSITORIES: biostudies-literature

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Olefin metathesis and quadruple hydrogen bonding: a powerful combination in multistep supramolecular synthesis.

Scherman Oren A OA Ligthart G B W L GB Ohkawa Haruki H Sijbesma Rint P RP Meijer E W EW

Proceedings of the National Academy of Sciences of the United States of America 20060728 32

We show that combining concepts generally used in covalent organic synthesis such as retrosynthetic analysis and the use of protecting groups, and applying them to the self-assembly of polymeric building blocks in multiple steps, results in a powerful strategy for the self-assembly of dynamic materials with a high level of architectural control. We present a highly efficient synthesis of bifunctional telechelic polymers by ring-opening metathesis polymerization (ROMP) with complementary quadrupl ...[more]

PMID: 16877543

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