Organic chemistry
Mohammad Galehassadi; Ebrahim Rezaii
Volume 4, Issue 2, pp. 133-235, Serial No. 11 , April 2016, , Pages 165-174
Abstract
Carvacrol is one of the main components of the EO of some Labiatae (Laminaceae) members like oregano, thyme and savory. Carvacrol has a lot of health benefits for example, antibacterial, and antioxidant activity.We synthesized some silicon derivatives of carvacrol, and characterized them by standard ...
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Carvacrol is one of the main components of the EO of some Labiatae (Laminaceae) members like oregano, thyme and savory. Carvacrol has a lot of health benefits for example, antibacterial, and antioxidant activity.We synthesized some silicon derivatives of carvacrol, and characterized them by standard methods. Then the monomer of dimethylvinylsilyl carvacrol was synthesized. Copolymer of this monomer and methacrylic acid (MAA) was synthesized with different ratios. And releases of these polymers as an drug delivery systems were investigated in the pH = 1 pH = 7.4.In this way , we stnthesized a new sily polymer with base of drug delivery system for a phytochemical compound.
Applied Chemistry
Abdoulhossien Massoudi; Azam Louie; Omid Louie
Volume 3, Issue 3, pp. 180-282,Serial No. 8 , July 2015, , Pages 276-282
Abstract
Poly methyl methacrylate (PMMA) is the most common material used in Prosthodontics. Several studies indicate a breakdown of the number of very high resin bases after 2 to 3 years to avoid breaking bass and several attempts have been made, such as altering the chemical structure of resin by adding causes ...
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Poly methyl methacrylate (PMMA) is the most common material used in Prosthodontics. Several studies indicate a breakdown of the number of very high resin bases after 2 to 3 years to avoid breaking bass and several attempts have been made, such as altering the chemical structure of resin by adding causes cross linking or copolymerization. The innovative method for improving the physical properties of the prosthesis and increase its strength, a copolymer of styrene - methyl methacrylate was proposed. Tensile strength increased with the increase of styrene with methyl methacrylate in an amount determined to be the most resistant. Polystyrene and poly methyl methacrylate and copolymers characterized by FTIR, CNMR and Tg and tensile strength were measured according to ISO1567 standard.