Acacia gum (AG) was grafted with polyacrylamides different catonic ratios obtained by using amounts of acrylamide (AM) and methacrylatoethyl trimethyl ammonium chloride (DMC (cationic monomer)). The thermal properties these products were investigated differential scanning calorimetry (DSC) thermogravimetric (TGA) analyses. formation confirmed FTIR spectroscopy analysis. effects cationic polyacr...

Previous studies from our laboratory have shown that ethylene, vinyl fluoride monomer (VFM), vinyl chloride monomer (VCM), and vinyl bromide monomer (VBM) are all acutely hepatotoxic in rats pretreated with polychlorinated biphenyl (PCB). The time course of hepatic injury development after exposure and several parameters, environmental and chemical, affecting this toxicity were evaluated in the...

Here, we demonstrate the first known approach to create G1 and G2 POSS dendrimers with 9 and 65 POSS units, and 56 and 392 terminal vinyl groups from a 1 → 7 branching monomer in only one and three steps.

A patient who worked with polyvinyl chloride developed a malignant haemangioendothelioma of a toe. This rare tumour is more commonly found in the liver where it has been reported to arise in association with exposure to the vinyl chloride monomer.

Two studies on mortality and morbidity of workers exposed to vinyl chloride monomer (VCM) which have been carried out on behalf of the Ministry of Labour, Health and Social Affairs on Northrhine-Westphalia are reported.

A novel vinyl ether monomer from eugenol, 2-eugenoloxyvinyl (EEVE), was synthesized and used as a building block for polymeric epoxy resins. The EEVE polymerized via cationic polymerization of the group leaving allylic functionality eugenol available further epoxidation. Epoxidized poly(EEVE) resins varying in levels epoxidation (epoxy equivalent weights 360 to 870 g/eq) were produced cured wit...

Photopolymers are interesting materials for use in recording information in holography. We study the holographic behavior and stability of volume holograms recorded in poly(vinyl alcohol)--acrylamide photopolymers with and without a cross linker. Using a first-harmonic diffusion model, we analyze the residual monomer that remains when volume diffraction gratings are recorded in photopolymer mat...

ABSTRACT The copolymerizations of vinyl chloride with o-olefin or acrylic compounds were investigated with organometallic compounds as catalysts. In general, organoaluminium compounds need to be treated with a complexing agent such as tetrahydrofuran prior to use. Otherwise the former reacts with polyvinyl chloride and loses its activity. The copolymer of vinyl chloride and propylene was thus o...

Self-healing chemistry used for damage repair have not previously been demonstrated for free-radical polymerization pathways. However, this chemistry is important for addition polymers such as poly(methyl methacrylate) used in bone cement and epoxy vinyl ester used in dental resins. Self-healing biomaterials offer the potential for safer and longer lasting implants and restoratives by slowing o...