Synthesis and characterization of novel AZO chromophore with multi hydroxyl groups

The biomineral-binding alendronate-chitosan conjugate (Scheme 1) was developed as a novel drug delivery system. Alendronate was conjugated to the hydroxyl groups of chitosan, thereby maintaining the amino groups of chitosan intact. By means of FT-IR and 1H NMR, the characterization was conducted to confirm the successful synthesis of alendronate-chitosan conjugate.

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Synthesis and Characterization of Colorimetric Metal Sensing Properties Based on Azo Chromophore Moiety

Molecular Crystals and Liquid Crystals ◽

10.1080/15421406.2011.564505 ◽

2011 ◽

Vol 538 (1) ◽

pp. 310-319

Author(s):

Young-A Son ◽

Young-Sung Kim ◽

Sung-Hoon Kim ◽

Do-Hyun Lee

Keyword(s):

Synthesis And Characterization ◽

Sensing Properties ◽

Azo Chromophore ◽

Metal Sensing

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Efficient Synthesis and Characterization of Some Novel Nitro-Schiff Bases and Their Complexes of Nickel(II) and Copper(II)

Journal of Chemistry ◽

10.1155/2013/701826 ◽

2013 ◽

Vol 2013 ◽

pp. 1-8 ◽

Cited By ~ 3

Author(s):

Hossein Naeimi ◽

Mohsen Moradian

Keyword(s):

Schiff Base ◽

Schiff Base Complexes ◽

Synthesis And Characterization ◽

Planar Geometry ◽

Hydroxyl Groups ◽

Spectroscopic Techniques ◽

Spectral Techniques ◽

Chemical Structures ◽

Ft Ir

Synthesis and characterization of some new Schiff base ligands derived from various diamines and nitrosalicylaldehyde and their complexes of Ni(II) and Cu(II) are reported. Several spectral techniques such as UV-Vis, FT-IR, and NMR spectra were used to identify the chemical structures of the reported ligands and their complexes. The ligands are found to be bound to the metal atom through the oxygen atoms of the hydroxyl groups and nitrogen atoms of imine groups, which is also supported by spectroscopic techniques. The results obtained by FT-IR and NMR showed that the Schiff base complexes of transition metal (II) have square-planar geometry.

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Synthesis and Characterization of Carboxyl-Terminated Hyperbranched Polyester

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.665.327 ◽

2014 ◽

Vol 665 ◽

pp. 327-330

Author(s):

Shi Jie Niu ◽

Jian Wang ◽

Yu Qing Bai ◽

Ming Tao Run

Keyword(s):

Glass Transition ◽

Sodium Acetate ◽

Succinic Anhydride ◽

Molar Ratio ◽

Synthesis And Characterization ◽

Hydroxyl Groups ◽

Hyperbranched Polyester ◽

End Groups ◽

Lower Glass Transition Temperature

In order to prepare carboxyl-terminated hyperbranched polyester (HBP-COOH), succinic anhydride was used to modify hydroxyl-terminated hyperbranched polyester (HBP-OH), and the influences of the solvents, catalysts and time on the product’s structure were investigated. When THF is used as the solvent, sodium acetate as the catalyst, the molar ratio of succinic anhydride and hydroxyl groups is 3:1, and the reaction time is 6 h at 65°C, the modification extent of the hydroxyl groups is about 99% with about 95% yield. HBP-COOH has much lower glass transition temperature than that of HBP-OH due to its long and flexible end-groups.

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Synthesis and Characterization of Novel Hybrid Ladderlike Polysilsesquioxanes Containing Polypropylene Moieties

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.845.204 ◽

2013 ◽

Vol 845 ◽

pp. 204-208

Author(s):

Deock Sam Park ◽

Tae Sung Ha ◽

Jung Hyurk Lim ◽

Kyung Min Kim

Keyword(s):

Melting Temperature ◽

Hybrid Materials ◽

Char Yield ◽

Synthesis And Characterization ◽

Hydroxyl Groups ◽

Organic Polymers ◽

Interesting Candidate ◽

Ft Ir

Novel ladderlike polysilsesquioxanes containing polypropylene moieties (LPS-PP) were synthesized from LPS having chloromethylphenyl groups (LPS) and polypropylene having hydroxyl groups (PP-OH). LPS-PP was characterized by FT-IR, DSC, SEM, EDX, and TGA. The obtained LPS-PP shows no melting temperature due to the disappearance of melting temperature of PP, indicating the rigidity of Si-O-Si backbone in ladderlike LPS. The char yield of LPS-PP is higher than that of PP-OH because of the silica parts of LPS. This new LPS-PP can be an interesting candidate to fabricate hybrid materials using interactions or compatibility between PP moieties of LPS and various organic polymers.

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Synthesis and characterization of α-butyl-ω-{3-[(2,2- dihydroxymethyl)-propionyloxy]}propyl polydimethyl siloxane

e-Polymers ◽

10.1515/epoly.2010.10.1.732 ◽

2010 ◽

Vol 10 (1) ◽

Cited By ~ 1

Author(s):

Meng Zhang ◽

Yuanjuan Wu ◽

Qingsi Zhang ◽

Tianduo Li

Keyword(s):

Ring Opening ◽

Ring Opening Polymerization ◽

Synthesis And Characterization ◽

Hydroxyl Groups ◽

Single Chain ◽

Polydimethyl Siloxane ◽

Primary Hydroxyl ◽

Anionic Ring

AbstractA novel polydimethylsiloxane containing two primary hydroxyl groups at one single chain end was synthesized by five-step reactions which included esterification, hydroxyl protection, anionic ring-opening polymerization, hydrosilylation and deprotection. The prepared compounds in each step were characterized. The results showed that at each step synthesis was successfully carried out and objective products could be achieved.

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Functionalization of Poly[(alkoxy)phosphazenes]: Synthesis and Characterization of Poly(phosphazenes) Containing Hydroxyl Groups

Macromolecules ◽

10.1021/ma00111a051 ◽

1995 ◽

Vol 28 (7) ◽

pp. 2500-2505 ◽

Cited By ~ 6

Author(s):

C. Delprato ◽

R. De Jaeger ◽

D. Houalla ◽

P. Potin

Keyword(s):

Synthesis And Characterization ◽

Hydroxyl Groups

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Synthesis and characterization of novel electrochromic devices derived from redox-active polyamide–TiO2 hybrids

Journal of Materials Chemistry C ◽

10.1039/c8tc04469d ◽

2018 ◽

Vol 6 (45) ◽

pp. 12422-12428 ◽

Cited By ~ 14

Author(s):

Bo-Cheng Pan ◽

Wei-Hao Chen ◽

Tzong-Ming Lee ◽

Guey-Sheng Liou

Keyword(s):

Synthesis And Characterization ◽

Hydroxyl Groups ◽

Electrochromic Devices ◽

Redox Active

Novel polyamides with hydroxyl groups and their hybrids have been successfully synthesized for the fabrication of novel electrochromic devices with enhanced electrochemical responsivity and stability.

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Synthesis and characterization of a flexible metal organic framework generated from MnIII and the 4,4′-bipyrazolate-ligand

Dalton Transactions ◽

10.1039/c8dt01185k ◽

2018 ◽

Vol 47 (26) ◽

pp. 8779-8786 ◽

Cited By ~ 5

Author(s):

S. Spirkl ◽

M. Grzywa ◽

D. Volkmer

Keyword(s):

Crystal Structure ◽

Metal Organic Framework ◽

Synthesis And Characterization ◽

Hydroxyl Groups ◽

Synthesis And Crystal Structure ◽

Metal Organic ◽

Flexible Metal ◽

Organic Framework

The synthesis and crystal structure of a novel metal organic framework, constructed from MnIII, the 4,4′-Bipyrazolate (BPZ) ligand and bridging hydroxyl groups is presented in this work.

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