High yield photolytic reduction of a series of thiaphosphoranes Z p SR to give Z p H with UV-light-induced tri-n-butyltin hydride through phosphoranyl radical Z p is described. This reaction is inhibited by a-methylstyrene and initiated by a radical initiator such as azobisisobutyronitrile

Oligo(L-lactic acid) (OLLA) was synthesized by ring opening polymerization of L-lactides using stannous octoate (0.03 wt% lactide). While this served as the initiator, L-lactic acids were co-initiators at 140 °C for 10 h, wherein prepared hydrolytic degradation 100 1 h. The molecular weight or degree controlled with monomer/co-initiator ratio (mol/mol). α-cellulose and microcrystalline cellulos...

Among the various online shopping business models, one that specifically attracts the attention of Internet users is “online group buying. which is characterized by group negotiation benefits and online word-of-mouth effects. Extant online group buying research has examined topics covering pricing mechanisms, pricing models, sales performance, and online users’ motivation to participation. Wher...

Poly(dimethylsiloxane) (PDMS) is the choice of material for a wide range of applications,1-3 because PDMS has many advantageous properties such as chemical inertness, nontoxicity, ease of handling, and commercial availability. It is impossible, however, to have one material that meets all the individual needs of microfluidic systems,1 micro-electromechanical systems (MEMS),2 and cellular study....

Abstract Starch-polyacrylic acid-polyvinylsulfonic acid (St-g-PAA-PVSA) graft copoymer was synthesized by gamma radiation as an initiator. The chemical structure, morphology, and thermal stability of the copolymer were investigated using FTIR, SEM, TGA. St-g-PAA-PVSA employed adsorbent for removal Co(II) Eu(III) radionuclides from their aqueous solutions batch adsorption method. Several experim...

Specific Aims SA1. Determine which of the seven identified Drosophila caspase genes are expressed in Drosophila melanogaster S2 cells. SA2. Identify which of the expressed caspases are downstream of DIAP1 in the apoptosis pathway of S2 cells. SA3. Explore the order in which expressed initiator and effector caspases are activated and study the function of proteasomal degradation in regulating th...

A clickable initiator, pentafluoro benzyl bromide, has been investigated for the cationic ring opening polymerization of poly(2-oxazolines).

The formation of an initiation complex with rabbit reticulocyte ribosomes and certain templates is dependent upon the action of two initiation factors (IF-I and IF-II) of protein synthesis isolated from 0.5 M KCl extracts of rabbit reticulocyte polysomes. IF-I mediates the GTP-dependent, but template-independent, binding of the cytoplasmic initiator transfer RNA (rabbit liver) to a 40S ribosoma...