Submit Manuscript | http://medcraveonline.com Abbreviations: GPC: Gel Permeation Chromatography; FTIR: Fourier Transform Infra Red; XRD: X Ray Diffraction; HRTEM: High Resolution Transmission Electron Microscopy; TGA: Thermo Gravimetric Analysis; IEC 60520: International Electronic Commission Number 60520; BS 7655: British Standard Number 7655; PMMA: Poly Methyl Methacrylate; PC: Poly Carbonate...

Starch graft poly(methyl acrylate) (S-g-PMA) was prepared by ceric ion initiation of methyl acrylate in an aqueous corn starch slurry (prime starch) which maximized the accessibility of the starch for graft polymerization. A new ceric ion reaction sequence was established as starch-initiator-methyl acrylate followed by addition of a small amount of ceric ion solution when the graft polymerizati...

Mainand side-chain sequence-regulated vinyl copolymers with acid and base monomer units were prepared using atom transfer radical addition (ATRA) and alternating radical copolymerization. A series of maleimide-ended sequence-regulated “oligomonomers” were prepared by ATRA of t-butyl acrylate (tBA: Ap) (i.e., a protected acrylic acid (A)) or an amine-functionalized acrylate, (2-(dimethylamino)et...

Multifunctional vinyl sulfonates and vinyl sulfonamides were conveniently synthesized and assessed in thiol-Michael crosslinking polymerizations. The monomer reactivities, mechanical behavior and hydrolytic properties were analyzed and compared with those of analogous thiol-acrylate polymerizations. Materials with a broad range of mechanical properties and diverse hydrolytic stabilities were ob...

A single layer, mono-component, fast, stable, and controllable curling motion actuator is prepared from a mixture of di-acrylate mesogenic monomer and 5CB using a photo-polymerization induced phase separation method. This actuator is capable of sensing water in acetone.

In this paper,the preparation of nano silica sol was used TEOS hydrolysis. Silica sol was used to compound the SiO2 sol / polyacrylate with acrylate monomer emulsion polymerization, the effect of sol amount and feeding methods of polyacrylate stability and other property of SiO2 / polyacrylate were studied.

This research tested the hypothesis that interaction between time and salinity reduces water absorption potential of a hydrogel – Poly (Acrylamide-co-Potassium Acrylate) influence degradation residual acrylamide monomer. The experimental design was completely randomized split-plot with four replications. treatments were periods (30, 60, 90 120 days) levels hydrating solution (distilled = 0.003,...

We describe graded-index polymer optical fibers with high bandwidth (5.12 GHz for 100-m transmission) and low loss in the near-infrared region (56 and 115 dB/km at wavelengths of 688 and 773 nm, respectively) that we successfully obtained with a new interfacial-gel polymerization technique using an all-deuterated methyl methacrylate monomer and a partially fluorinated acrylate monomer. The nece...

Continuously increasing life expectancy results in a rising number of bone diseases and fractures. Replacements from natural sources are not only limited in their availability, they also have some serious disadvantages such as possible immunological reactions or transmission of diseases. New synthetic biodegradable materials based on photopolymers could be an alternative solution. In these inve...

This study presents a novel two-stage thiol-acrylate Michael addition-photopolymerization (TAMAP) reaction to prepare main-chain liquid-crystalline elastomers (LCEs) with facile control over network structure and programming of an aligned monodomain. Tailored LCE networks were synthesized using routine mixing of commercially available starting materials and pouring monomer solutions into molds ...