نتایج جستجو برای: ethyl methacrylate

تعداد نتایج: 44557  

Journal: :Advanced Materials Interfaces 2023

Abstract Here, a versatile strategy to engineer smart theranostic nanocarriers is reported. The core/shell nanosystem composed of superparamagnetic iron oxide (Fe 3− δ O 4 ) nanoparticle (NP) core bearing the biocompatible thermo‐responsive poly(2‐(2‐methoxy)ethyl methacrylate‐oligo(ethylene glycol methacrylate), P(MEO 2 MA x ‐OEGMA 100− copolymer (where and 100‐ represent molar fractions MEO O...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده شیمی 1392

حفاظت از گروههای عاملی از مراحل اجتناب ناپذیر در سنتز آلی است، در این بین محافظت از گروههای آمینی بسیار حائز اهمیت است. روشهای متعددی از قبیل فرمیله کردن، استیله کردن، محافظت بصورت boc و موارد زیاد دیگری جهت محافظت از گروههای آمینی تاکنون گزارش شده است. از طرف دیگر توسعه و کاربرد کاتالیست ها و حلالهای دوستدار محیط زیست و مزایای واکنشهای بدون حلال همچون سرعت بالای واکنش، خالص سازی آسان، کاهش آلو...

Journal: :Dental Materials Journal 2021

This research was conducted to investigate the bond strength between artificial teeth and a thermoplastic denture base resin for injection molding with different surface preparations use in flexible removable partial dentures. Composite acrylic were bonded three types of resins (polyamide, polyester, polycarbonate) conventional heat-polymerized polymethyl methacrylate (PMMA) (control). The ridg...

Journal: :International journal of occupational medicine and environmental health 2014
Maya Lyapina Maria Dencheva Assya Krasteva Mariana Tzekova Angelina Kisselova-Yaneva

OBJECTIVES A multitude of acrylic monomers is used in dentistry. Formaldehyde is a ubiquitous chemical agent, which is an ingredient of some dental materials and may be released from methacrylate-based composites. The purpose of the study is to evaluate the incidence and the risk of cross-sensitization to some methacrylic monomers (methylmethacrylate - MMA, triethyleneglycol dimethacrylate - TE...

Journal: :Biomacromolecules 2003
Yiqing Tang Shiyong Y Liu Steven P Armes Norman C Billingham

Amphiphilic ABC triblock copolymers composed of monomethoxy-capped poly(ethylene glycol) (MPEG), poly(2-(dimethylamino)ethyl methacrylate) (DMA), and poly(2-(diethylamino)ethyl methacrylate) (DEA) have been synthesized by atom transfer radical polymerization (ATRP). These copolymers dissolve molecularly in acidic aqueous media at room temperature due to protonation of the tertiary amine groups ...

Journal: :Food Chemistry 2021

A new original application for a polyacrylic film based on the monomers 2-(dimethylamino)ethyl methacrylate (NNDA), 2-hydroxyethyl acrylate (2HEA) and methylmethacrylate (MMA) as starch azure container has been set up simple determination of honey diastase activity. The proposed method is correlation reducing sugars generated during enzymatic process with Schade reference assay. charged acting ...

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