A new strategy to construct thermoelectric composites of SWCNTs and poly-Schiff bases with 1,4-diazabuta-1,3-diene structures acting as bidentate-chelating units

2016 ◽  
Vol 4 (29) ◽  
pp. 11299-11306 ◽  
Author(s):  
Caiyan Gao ◽  
Guangming Chen
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Schiff Bases ◽  
Thermoelectric Properties ◽  
Transition Metal Ions ◽  
One Pot ◽  
One Pot Synthesis ◽  
New Strategy

A new strategy has been developed to achieve thermoelectric composites of SWCNTs and poly-Schiff bases, which are obtained via a convenient one-pot synthesis and can chelate transition metal ions to adjust their thermoelectric properties.

scholarly journals Transition Metal-Ions Incorporated PEG300 and TDI Based Hydroxy-Terminated Polyurethanes

2021 ◽  
Author(s):  
Laxmi ◽  
Adnan Shahzaib ◽  
Shabnam Khan ◽  
Anujit Ghosal ◽  
Fahmina Zafar ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Soft Segment ◽  
Polymeric Materials ◽  
Transition Metal Ions ◽  
Reaction Scheme ◽  
Polymerization Reaction ◽  
Bacterial Strains ◽  
One Pot

Abstract Present work reports the synthesis of polyethylene glycol, PEG 300 (soft segment) and toluene 2,4-diisocyanate, TDI (hard segment) based hydroxy-terminated polyurethane ligands (HTPU300) for the first time to the best of our knowledge. The effect of 3d transition metal ions with different 3d electrons within HTPU (M(II)-HTPU300, M= Mn, Co, Ni, and Zn) was evaluated by their physical and antibacterial studies of the final complex polymeric unit. M(II) HTPU300 and was conveniently synthesized in appreciable yields following a facile and one-pot addition polymerization reaction scheme. Foremost the thermal stability of all the M(II)-HTPU300 polymeric materials were evaluated using TGA, DSC, and IPDT calculations. FTIR technique was used to ascertain the structure of M(II)-HTPU300, while SEM/EDX and XRD techniques were used to study their morphology, elemental analysis, and crystalline nature of the material, respectively. Further, the in-vitro antimicrobial activity of the PU was investigated against gram-positive (Staphylococcus aureus, Bacillus subtilis) and gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacterial strains. The comparatively moderate efficacy against bacterial stain supports the possible application of such PU as thermally stable bacterial resistant materials constructed out of degradable PEG.

STUDIES OF MICROENVIRONMENTAL EFFECTS ON COMPLEXATION OF POLYMER-BOUND SCHIFF BASES WITH TRANSITION METAL IONS

2002 ◽  
Vol 32 (7) ◽  
pp. 1153-1175 ◽  
Author(s):  
T. Radhakrishnan ◽  
Gabriel Kolawole ◽  
Neerish Revaprasadu ◽  
P. Sreekumari Nair ◽  
N. B. Sreekala
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Schiff Bases ◽  
Transition Metal Ions

scholarly journals Review on Schiff Base: A Scrupulous Binding Detector for Metal Ions

2020 ◽  
pp. 29-33
Author(s):  
Keyur D. Bhatt ◽  
Surbhi V. Upadhyay
Keyword(s):  
Drug Delivery ◽  
Schiff Base ◽  
Coordination Chemistry ◽  
Transition Metal ◽  
Metal Ions ◽  
Schiff Bases ◽  
Transition Metal Ions ◽  
Interesting Application

The Schiff bases find interesting application in the field of analytical, biological, medicinal and chemistry etc. Hence, there is an increasing interest in the synthesis of new Schiff bases. Schiff bases find application as ionic and neutral analyses by complexation, applications as a microbial and drug delivery. Synthesis of Schiff base and their complexes with transition metal ions herald many promises in the field of coordination chemistry.   

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