scholarly journals The synthesis and characterization of 2-mercaptoethyl methacrylate

2005 ◽  
Vol 59 (11-12) ◽  
pp. 321-323 ◽  
Author(s):  
Marija Knezevic ◽  
Lynne Katsikas ◽  
Ivanka Popovic
Keyword(s):  
Gas Chromatography ◽  
Ftir Spectroscopy ◽  
Methacrylic Acid ◽  
Acetyl Chloride ◽  
Chain Transfer ◽  
Chain Transfer Agent ◽  
Synthesis And Characterization ◽  
H Nmr ◽  
A Chain

The synthesis of 2-mercaptoethyl methacrylate from methacrylic acid and 2-mercaptoethanol by etherification using acetyl chloride as catalyst was optimized. The purity of the obtained product was controlled by gas chromatography and its identity confirmed by H-NMR and FTIR spectroscopy. 2-Mercapto-ethyl methacrylate could find application as a chain transfer agent in radical polymerizations.

Synthesis and characterization of polymer/clay nanocomposites by intercalated chain transfer agent

2008 ◽  
Vol 44 (7) ◽  
pp. 1949-1954 ◽  
Author(s):  
Hakan Akat ◽  
Mehmet Atilla Tasdelen ◽  
Filip Du Prez ◽  
Yusuf Yagci
Keyword(s):  
Chain Transfer ◽  
Chain Transfer Agent ◽  
Synthesis And Characterization ◽  
Clay Nanocomposites

Synthesis and characterization of polyacrylate composite with thiol-modified nanosilica as chain transfer agent

2015 ◽  
Vol 132 (45) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jianbing Wu ◽  
Ping Li ◽  
Xiaolong Ma ◽  
Qingfeng Liang ◽  
Tuan Yuan ◽  
...  
Keyword(s):  
Chain Transfer ◽  
Chain Transfer Agent ◽  
Synthesis And Characterization

Synthesis and Characterization of some 2-Azetidinones Derived from 3-Nitro Phthalic Anhydride and Evaluation their Biological against Bacteria and Fungi

2020 ◽  
Vol 1002 ◽  
pp. 360-368
Author(s):  
Ahmood Kh. Jebur Al-Joubory ◽  
Rabiha Hameed Saleh ◽  
Omar Abdulrahman Mohammed
Keyword(s):  
Phthalic Anhydride ◽  
Acetyl Chloride ◽  
Bacterial Activity ◽  
Synthesis And Characterization ◽  
Inhibition Activity ◽  
Gram Negative ◽  
H Nmr ◽  
Bacteria And Fungi ◽  
High Inhibition

Reaction of the moiety 3-nitro phthalic anhydride with p- Phenylene diamine in (40 ml) acetic acid to give compound (p-amino phenyl)-3-nitro phthalimide (A1).Which that react with different aromatic aldehyde in ethanol absolute to give compounds hydrazone (A2-A5), then react this compounds (A2-A5) with chloro acetyl chloride in presence of TEA by using DMF as solvent to obtain 2-azetidinones (A6-A9).The compounds of all the newly synthesized structures were confirmed by and ,IR, 1H NMR as well as melting point. Some of these new structures showed antimicrobial activity (A7-A8) and anti-bacterial activity (A7-A8).Antibacterial activity of some prepared compounds against two types of bacteria: Staphylococcus aureus (Gram positive) and E.coli (Gram negative). Some the compounds showed high inhibition activity against bacteria and two fungi (Candida albicans) and (Candida tropicalis.).

Synthesis and characterization of 4-vinylimidazole ABA triblock copolymers utilizing a difunctional RAFT chain transfer agent

2013 ◽  
Vol 4 (7) ◽  
pp. 2333 ◽  
Author(s):  
Michael H. Allen ◽  
Sean T. Hemp ◽  
Musan Zhang ◽  
Mingqiang Zhang ◽  
Adam E. Smith ◽  
...  
Keyword(s):  
Chain Transfer ◽  
Triblock Copolymers ◽  
Chain Transfer Agent ◽  
Synthesis And Characterization

Synthesis and characterization of novel chiral derivatizing agents containing β-keto-anthracene adducts (KAAs) by 1H-NMR: aromatic influence and chiral alcohol absolute configuration determination

2019 ◽  
Vol 17 (3) ◽  
pp. 541-554
Author(s):  
Neeranuth Intakaew ◽  
Puracheth Rithchumpon ◽  
Chanatkran Prommin ◽  
Saranphong Yimklan ◽  
Nawee Kungwan ◽  
...  
Keyword(s):  
1H Nmr ◽  
Absolute Configuration ◽  
Synthesis And Characterization ◽  
Chiral Alcohols ◽  
Chiral Alcohol ◽  
Aromatic Rings ◽  
H Nmr ◽  
Chiral Derivatizing Agents

New chiral derivatizing agents and the effect of aromatic rings were investigated for absolute configuration of chiral alcohols via1H-NMR.

scholarly journals Synthesis and characterization of different soybean oil-based polyols with fatty alcohol and aromatic alcohol

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 491-499
Author(s):  
Fukai Yang ◽  
Hao Yu ◽  
Yuyuan Deng ◽  
Xinyu Xu
Keyword(s):  
Molecular Weight ◽  
Soybean Oil ◽  
Retention Time ◽  
Ring Opening ◽  
Isoamyl Alcohol ◽  
Synthesis And Characterization ◽  
Intermolecular Force ◽  
H Nmr ◽  
Epoxy Groups

Abstract In this article, five kinds of soybean oil-based polyols (polyol-E, polyol-P, polyol-I, polyol-B, and polyol-M) were prepared by ring-opening the epoxy groups in epoxidized soybean oil (ESO) with ethyl alcohol, 1-pentanol, isoamyl alcohol, p-tert-butylphenol, and 4-methoxyphenol in the presence of tetrafluoroboric acid as the catalyst. The SOPs were characterized by FTIR, 1H NMR, GPC, viscosity, and hydroxyl numbers. Compared with ESO, the retention time of SOPs is shortened, indicating that the molecular weight of SOPs is increased. The structure of different monomers can significantly affect the hydroxyl numbers of SOPs. Due to the large steric hindrance of isoamyl alcohol, p-hydroxyanisole, and p-tert-butylphenol, SOPs prepared by these three monomers often undergo further dehydration to ether reactions, which consumes the hydroxyl of polyols, thus forming dimers and multimers; therefore, the hydroxyl numbers are much lower than polyol-E and polyol-P. The viscosity of polyol-E and polyol-P is much lower than that of polyol-I, polyol-B, and polyol-M. A longer distance between the molecules and the smaller intermolecular force makes the SOPs dehydrate to ether again. This generates dimer or polymers and makes the viscosity of these SOPs larger, and the molecular weight greatly increases.

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