Living supramolecular polymerization

Greater control is achieved over the chain growth and properties of dynamic materials Most polymers that we encounter, like those used in grocery bags and soda bottles, are formed from small molecules (monomers) held together by strong covalent bonds. In supramolecular polymerization, monomers bond...

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Bibliographic Details
Published inScience (American Association for the Advancement of Science) Vol. 349; no. 6245; pp. 241 - 242
Main Authors Mukhopadhyay, Rahul Dev, Ajayaghosh, Ayyappanpillai
Format Journal Article
LanguageEnglish
Published Washington The American Association for the Advancement of Science 17.07.2015
Subjects
Bags
bottles
Covalence
Covalent bonds
hydrogen bonding
Hydrogen bonds
Molecular chemistry
Monomers
Polymerization
Polymers
Variability
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Summary:Greater control is achieved over the chain growth and properties of dynamic materials Most polymers that we encounter, like those used in grocery bags and soda bottles, are formed from small molecules (monomers) held together by strong covalent bonds. In supramolecular polymerization, monomers bond through weaker reversible interactions, such as hydrogen bonds (H-bonds). Supramolecular polymerization usually proceeds through step-growth mechanisms ( 1 ), where both ends of each monomer are reactive and many smaller oligomers form before long polymers appear. To overcome this problem, a method developed for covalent polymers known as living polymerization has been adopted for supramolecular polymers to achieve better control and uniformity of chain growth and dispersity.
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ISSN:0036-8075
1095-9203
DOI:10.1126/science.aac7422