Side‐chain functionalized supramolecular polymers

Weck, Marcus

doi:10.1002/pi.2200

Cited by 97 publications

(70 citation statements)

References 134 publications

(182 reference statements)

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“…Side-chain supramolecular polymers result from intermolecular attachment of side-chains to a linear polymer backbone resulting in the formation of comb-like supramolecular structures 6 or supramolecular networks (Scheme 1).…”

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confidence: 99%

Synthesis and rheological behavior of poly(1,2-butylene oxide) based supramolecular architectures

et al. 2016

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In this work we present the synthesis of poly(1,2-butylene oxide) (PBO) functionalized with the complementary hydrogen bond forming groups 2,4-diaminotriazine (DAT) and thymine. PBO is a rubbery polymer. Due to its semi-polar nature PBO is expected to suppresses non-directed cluster formation of the supramolecular groups but not influence their directed interactions. For the synthesis of backbone functionalized polymers we developed a procedure which allowed randomly copolymerizing BO with 1,2-epoxy-7-octene using anionic ring opening polymerization with potassium tert-butanolate as initiator. The vinyl groups were converted to OH-groups by oxidation. In addition, PBO with one alcoholic end group was obtained by homopolymerization of BO. For the variant with OH-groups at both chain ends a procedure was developed which was based on the cleavage of the tert-butyl initiator group. In all the polymers the alcohol groups were basically quantitatively transformed into NH 2 -groups.DAT and thymine functionalities were attached to the NH 2 -groups again in almost quantitative conversion. All reaction steps were monitored by 1 H-NMR using pyridine-d 5 as solvent. This method allowed determining the conversions of the different synthesis steps with high precision. The materials were examined in linear rheology in order to study the effect of the hydrogen-bonds on the dynamics of the resulting supramolecular structures. The results corroborate the exclusive existence of directed interactions between the supramolecular groups.

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confidence: 99%

Synthesis and rheological behavior of poly(1,2-butylene oxide) based supramolecular architectures

et al. 2016

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“…Polimer ini dapat kembali menjadi monomer atau oligomernya sehingga supramolekular polimer ini bersifat reversible (Lehn (2002), Bouteiller (2007), Shimizu (2007) dan Weck (2007)). Karena sifat reversible ini, supramolekular polimer memiliki beberapa kelebihan dibandingkan polimer murni, kelebihan tersebut diantaranya : 1) memiliki sifat yang dapat berubah sesuai dengan kondisi lingkungan (karena bersifat re v e r s i b l e ) , 2 ) m e m p e r mu d a h p r o s e s pengolahan material, dan 3) memiliki sifat healing ability (Ghosh, 2009).…”

Section: Supramolekular Polimerunclassified

“…Kelebihan ikatan hidrogen adalah susunan dan fleksibilitas dari ikatan hidrogen sehingga d a p a t d i g u n a k a n u n t u k m e m b u a t supramolekular polimer (Mes, 2011). Selain itu interaksi pada ikatan hidrogen dapat dikontrol melalui kontrol temperatur, pelarut dan tekanan (Weck, 2007).…”

Section: Supramolekular Polimerunclassified

Kajian Tentang Self-Healing Rubber Self Healing Rubber Review

Purbaya¹

2015

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Abstrak B a r a n g j a d i k a r e t s e l a m a m a s a pemakaiannya dapat mengalami cracking. Untuk mengatasi masalah ini maka konsep selfhealing dapat digunakan. Self-healing merupakan kemampuan dari suatu material untuk dapat memperbaiki dirinya sendiri setelah mengalami kerusakan. Konsep ini dapat digunakan untuk menambah umur pemakaian suatu produk. Strategi yang dapat digunakan dalam pembuatan material selfhealing adalah : 1) pembentukan ikatan silang pada polimer, 2) pelepasan healing agent pada s a a t m e m p r o d u k s i p o l i m e r, d a n 3 ) menggunakan teknologi khusus seperti konduktiviti, electro-fluid-dynamic (EFD), migrasi nano partikel, efek shape memori dan co-deposition. Salah satu supramolekular polimer yang memiliki sifat elastis dan healing ability adalah self-healing rubber. Self-healing rubber disintesis melalui dua tahap sintesis, yaitu 1) pembuatan oligoamide, dan 2) mereaksikan oligoamide yang diperoleh dari tahap pertama reaksi dengan urea untuk menghasilkan self-healing rubber. Karet yang diperoleh memiliki sifat elastis dan sifat healing ability setelah mengalami kerusakan. Sifat ini tidak ditemukan dalam karet alam maupun karet sintesis. Jenis karet baru ini sangat menarik untuk dipelajari dan diaplikasikan untuk teknologi karet.

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“…There is precedent for the possible enhancement in affinity of the background sites. There are multiple examples in the literature of multifunctional (www.interscience.wiley.com) DOI:10.1002/jmr.912 molecular receptors that have been immobilized into polymers and have retained their enhanced affinities and selectivities (Alexandratos and Stine, 2004;Filby and Steed, 2006;Weck, 2007).…”

Section: Introductionmentioning

confidence: 98%

Comparison of monofunctional and multifunctional monomers in phosphate binding molecularly imprinted polymers

Goswami

Shimizu

2008

J of Molecular Recognition

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In this study, molecularly imprinted polymers (MIPs) prepared using a multifunctional and a monofunctional monomer were compared with respect to their affinities, selectivities, and imprinting efficiencies for organophosphates. This is of interest because multifunctional monomers have higher affinities than traditional monofunctional monomers for their target analytes and thus should yield MIPs with higher affinities and selectivities. However, polymers containing multifunctional monomer may also have a higher number of unselective, non-templated binding sites. This increase in background binding sites could lead to a decrease in the magnitude of the imprinting effect and in the selectivity of the MIP. Therefore, phosphate selective imprinted and non-imprinted polymers (NIPs) were prepared using a novel multifunctional triurea monomer. The binding properties of these polymers were compared with polymers prepared using a monofunctional monourea monomer. The binding affinities and selectivities of the monomers, imprinted polymers, and NIPs were characterized by NMR titration, binding uptake studies, and binding isotherms. MIPs prepared with the triurea monomer showed higher binding affinity and selectivity for the diphenylphosphate anion in organic solvents than the MIPs prepared with the monofunctional monomer. Surprisingly, the binding properties of the NIPs revealed that the polymers prepared using the multifunctional and monofunctional monomers were very similar in affinity and selectivity. Thus, the multifunctional monomers increase not only the affinity of the MIP but also enhance the imprinting effect.

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Side‐chain functionalized supramolecular polymers

Cited by 97 publications

References 134 publications

Synthesis and rheological behavior of poly(1,2-butylene oxide) based supramolecular architectures

Synthesis and rheological behavior of poly(1,2-butylene oxide) based supramolecular architectures

Kajian Tentang Self-Healing Rubber Self Healing Rubber Review

Comparison of monofunctional and multifunctional monomers in phosphate binding molecularly imprinted polymers

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