Synthesis of hyaluronated poly(exo?7?oxabicyclo2.2.1 hept?5?en?2,3?dicarboxylic anhydride) brushes via a combination of surface?initiated ring?opening metathesis polymerization and thiol?ene click reaction

Esra Altay Ozturk; Mehmet S. Eroglu; Tuncer Caykara

首页> 外文期刊>Chemical papers >Synthesis of hyaluronated poly(exo?7?oxabicyclo2.2.1 hept?5?en?2,3?dicarboxylic anhydride) brushes via a combination of surface?initiated ring?opening metathesis polymerization and thiol?ene click reaction

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Synthesis of hyaluronated poly(exo?7?oxabicyclo2.2.1 hept?5?en?2,3?dicarboxylic anhydride) brushes via a combination of surface?initiated ring?opening metathesis polymerization and thiol?ene click reaction

机译：透明质酸盐的合成保利项目7 (exo ? oxabicyclo 2.2.1了庚5 ?恩? 2、3 ?表面的结合?复分解聚合和硫醇吗?反应

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Well-defined hyaluronated poly(exo-7-oxabicyclo[2.2.1]hept-5-en-2,3-dicarboxylic anhydride) [poly(EHDA)-HA] brushes on the hydroxyl-terminated silicon (Si–OH) surface were prepared through the combination of surface-initiated ring-opening metathesis polymerization (ROMP) and thiol-ene click reaction. This process was realized in four successive steps: (i) formation of self-assembled monolayer of (3-aminopropyl) triethoxysilane on the Si–OH surface (Si-APTES), (ii) bonding of EHDA monomer to the Si-APTES surface, (iii) synthesis of poly(EHDA) brushes via surface-initiated ROMP and (iv) coupling of thiolated hyaluronic acid (Th-HA) to poly(EHDA) chains via thiol-ene click reaction. Surface wettability, surface morphology and chemical compositions of poly(EHDA)-HA brushes were characterized by contact angle measurements, atomic force, microscopy and X-ray photoelectron spectroscopy, respectively. Grafting density (σ, chains nm~(?2)) and average distance between grafting points (D, nm) of the poly(EHDA) brushes were measured to be 0.50 chains nm~(?2) and 1.65 nm, independent of the [catalyst]/[monomer] ratios, which indicated that high grafting was created on the silicon substrate. However, low amounts of HA molecules were bonded to poly(EHDA) chains due to the high volume of Th-HA chains creating some steric hindrances. Biocompatible property of the poly(EHDA)-HA brushes are useful candidate for making advanced biological devices to control the behavior of biomolecules on surfaces.

机译：定义良好的透明质酸盐聚exo-7-oxabicyclo[2。

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来源
《Chemical papers》 |2021年第4期|1629-1638|共10页
作者
Esra Altay Ozturk; Mehmet S. Eroglu; Tuncer Caykara;
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作者单位

Department of Chemistry, Faculty of Science, Gazi University, Besevler, 06500 Anakara, Turkey;

Department of Chemical Engineering, Faculty of Engineering, Marmara University, Kadikoy, 34722 Istanbul, Turkey;

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正文语种英语
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GRAFT DENSITY; Dicarboxylic anhydride; clickingAnhydridessynthesisMetathesisHIGH CAPACITY;

机译：接枝密度;二元羧酸酐;clickingAnhyd;

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3. ChemInform Abstract: Synthesis and Crystal and Molecular Structure of 5‐Trimethylgermyl‐7‐ oxabicyclo(2.2.1)hept‐5‐ene‐2,3‐exo‐dicarboxylic Anhydride. [J] . L. IGNATOVICH, E. PRIEDE, A. KEMMEE. LUKEVICS Chem Inform . 1993,第7期

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机译：ChemInform Abstract: Preparation of (R)‐(+)‐7‐Oxabicyclo(2.2.1)hept‐5‐ene‐exo‐2‐carboxylic Acid, a Precursor to Substrates for the Ring Opening Metathesis Polymerization.

Synthesis of hyaluronated poly(exo?7?oxabicyclo2.2.1 hept?5?en?2,3?dicarboxylic anhydride) brushes via a combination of surface?initiated ring?opening metathesis polymerization and thiol?ene click reaction

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