Self-complementary quadruple hydrogen bonding motifs: from design to function

Baruah, Pranjal K.; Khan, Suman

doi:10.1039/c3ra43814g

Cited by 39 publications

(31 citation statements)

References 171 publications

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“…Inspired by the Watson–Crick base pairings of adenine–thymine (A–T) and cytosine–guanine (C–G; Fig. (b)), which control the double helix structure of DNA at the level of sequence specificity, significant attention has been devoted to the design and synthesis of high‐affinity hydrogen‐bonded arrays for use as supramolecular synthons . The association constant ( K a ) of hydrogen‐bonded arrays, and hence the stability of the complex, is the sum of several factors.…”

Section: Supramolecular Polyurethanesmentioning

confidence: 99%

Hydrogen-bonded supramolecular polyurethanes

Houton

Wilson

2014

Polym. Int.

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As a class of materials, supramolecular polymers represent an exciting area of advanced materials research. The combination of unique properties, easy synthesis and response to the environment or external and temporal stimuli makes them important as a focus for the next generation of materials. Understanding and manipulating the non-covalent interactions leading to polymer assembly allows control over properties by selecting specific building blocks with well-understood non-covalent chemistry from an established toolkit. This allows assembly of defined and easily manipulated architectures, where physical characteristics similar to conventional high-molecular-weight polymers can be realized. Herein, we describe recent studies of the self-assembly of polyurethane-based supramolecular materials.

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Section: Supramolecular Polyurethanesmentioning

confidence: 99%

Hydrogen-bonded supramolecular polyurethanes

Houton

Wilson

2014

Polym. Int.

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“…By means of CRP techniques, scientists are indeed able to design well-defined macromolecular architectures incorporating a variety of functional groups that can associate under appropriate conditions. With the development of synthetic routes toward self-complementary [ 32 , 33 ] and recognition [ 34 , 35 , 36 ] motifs, the last few years have witnessed the emergence of a host of H-bonded [ 37 , 38 ], coordination [ 39 , 40 , 41 ], and π-stacked [ 42 ] polymers. In addition, two main classes of systems can be distinguished according to the position of the associating units: telechelic polymers that possess functional groups located at each ends [ 43 , 44 , 45 ]; and side-chain functionalized polymers that bear pendant associating groups along the main-chain [ 46 ].…”

Section: Introductionmentioning

confidence: 99%

Revealing the Supramolecular Nature of Side-Chain Terpyridine-Functionalized Polymer Networks

Brassinne

Jochum

Fustin

2015

IJMS

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Nowadays, finely controlling the mechanical properties of polymeric materials is possible by incorporating supramolecular motifs into their architecture. In this context, the synthesis of a side-chain terpyridine-functionalized poly(2-(dimethylamino)ethyl methacrylate) is reported via reversible addition-fragmentation chain transfer polymerization. By addition of transition metal ions, concentrated aqueous solutions of this polymer turn into metallo-supramolecular hydrogels whose dynamic mechanical properties are investigated by rotational rheometry. Hence, the possibility for the material to relax mechanical constrains via dissociation of transient cross-links is brought into light. In addition, the complex phenomena occurring under large oscillatory shear are interpreted in the context of transient networks.

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“…hydrogen-bonding motifs (HBMs) motifs. [23][24][25][26][27][28][29] To obtain linear supramolecular polymers high affinity HBMs are required, 30 whereas for side-chain-functionalized 31 or cross-linked polymers 32,33 the use of multiple lower affinity HBMs can be used for instance, nucleobases 34,35 and the diamidopyridine/ diaminotriazine-thymine dyad (DAP/DAT•T). [36][37][38][39][40][41][42] In the context of supramolecular blends, the use of this latter approach exploiting backbones bearing side-chains functionalized with HBMs is desirable.…”

Section: Introductionmentioning

confidence: 99%