Polysulfone was investigated as an alternative base-polymer for polymer inclusion membranes (PIM’s) that could withstand harsh environmental conditions and have good transport efficiency of metal ions. PIM’s were prepared using polysulfone as a base polymer and Aliquat 336 as a carrier in the absence of a plasticizer. Chromium (VI) was used as standard to study the extraction efficiency of the ...

a novel nano – sized  manganese (ii) coordination polymer, [{mn(ncs)2(l)(h2o)2}(l)]n  , (1) (l- = 4,4'-bipyridine), have been synthesized by a sonochemical process and characterized by scanning electron microscopy (sem), x-ray diffraction (xrd), ir spectroscopy and elemental analysis.  direct calcination of the single crystals and nano-sized compound 1 at 400 0c under air atmosphere yields...

A new pathway to nano-sized hollow-sphere particles from six-arm star polymers with an amphiphilic core-corona structure, synthesized in a four-step-procedure by means of reversible addition-fragmentation chain transfer (RAFT) polymerization is presented, in order to achieve more stable and versatile nano-container systems, which could be applied in the fields of drug delivery or catalyst stora...

a new nano-sized cobalt(ii) coordination polymer, (col1).0.5dmf.1.5ch3oh(1); [h2l1 = 5-(4-carboxy phenyl azo) salicyilic acid] has been synthesized by a sonochemical method. the thermal stability of compound 1 was studied by thermo- gravimetric and differential thermal analyses. nano-structure of this coordination polymer was characterized by elemental analyses, ir spectroscopy,  powder x-ray d...

Extending the concept of synthesizing 2 d polymer sheets has been explored in this mini review to highlight about the future potentials inherent with this important class of engineered materials. The discovery of graphene (i.e. mechanically and chemically robust highly crystalline nano sheets with extremely high charge carrier mobility) not only dispelled the thermodynamic instability of 2D mat...

in the current paper, finite element method is employed for numerical simulations and the study of influential parameters on elastic modulus of polymer-matrix nano-composites. effects of different key parameters including particle elastic modulus, interphase elastic modulus, matrix elastic modulus, interphase thickness and particle volume fraction on total elastic modulus of nano-composite mate...

A microlens array made of polymer/nanosized polymer-dispersed liquid crystal (nano-PDLC) is demonstrated. The polymer was first patterned into microlens array cavities on a planar substrate and the molded polymer cavities were filled with nano-PDLC material. The nano-PDLC-based microlens is optically transparent. The focal length of the microlens is electrically tunable and the response time is...

a new nano-sized lead(ii) coordination polymer, [pb(2-bpdh)(no3)2]n (1); (2-bpdh = 2,5-bis(2-pyridyl)-3,4-diaza-2,4-hexadiene)}, was synthesized by a sonochemical method. the structure of 1 may be considered coordination polymer of lead(ii) consist of metallocyclicchains formed by bridging no3- and 2-bpdh ligands. the thermal stability of compound was studied by thermal gravimetric and differen...

Nanocapsule consists of a thin membrane surrounding a core (Liquid, solid) with their size ranging from 10nm to 1000 nm. Nanocapsules are submicroscopic colloidal drug carrier systems composed of an oily or an aqueous core surrounded by a thin polymer membrane. The membrane may be composed of natural or synthetic polymers. Two technologies can be used to obtain such Nanocapsules: the interfacia...