نتایج جستجو برای: acrylates

تعداد نتایج: 601  

Journal: :Polymer 2021

In this work, a novel dual-curing procedure has been developed. It is combination of first radical UV-initiated thiol-(meth)acrylate reaction, followed by second thermal thiol-epoxy step catalysed base. Since (meth)acrylates can lead to homopolymerization mechanism, the amount thiol be optimized reach cross-linked materials with Tgs above room temperature and good mechanical performance. should...

2013
Qiuping Ding Yuqing Lin Guangni Ding Fumin Liao Xiaoyan Sang Yi-Yuan Peng

A new simple and efficient method to construct ring-fused 4-alkyl-4H-3,1-benzothiazine-2-thione derivatives has been developed from carbon disulfide and (E)-3-(2-aminoaryl)acrylates or (E)-3-(2-aminoaryl)acrylonitriles under mild conditions, without the need for a metal catalyst. The newly developed method tolerates a wide range of substrates in moderate to excellent yields. Moreover, this meth...

2015
Radha Narayanan

Activities and Findings Research and Education Activities: The research carried out involved the synthesis of platinum nanoparticles of different sizes and shapes and capped with PVP or other polymers such as polymethyl acrylates. TEM was used to determine the size and shape distributions and their changes during their catalytic activity in colloidal solutions.. Two reactions were studied. A ge...

Journal: :Organic & biomolecular chemistry 2015
Chada Raji Reddy Siddique Z Mohammed Paridala Kumaraswamy

A novel metal-free approach to construct the tetrasubstituted furans from Morita-Baylis-Hillman (MBH)-carbonates of acetylenic aldehydes has been developed. This strategy involves the cascade nucleophilic substitution/5-exo-dig-cycloisomerization of MBH-carbonates with 1,3-dicarbonyl compounds to give uniquely substituted 2-furan-3-yl acrylates. Additionally, the obtained furan adducts open a n...

Journal: :The Journal of organic chemistry 2008
Jun Deng Xiang-Ping Hu Jia-Di Huang Sai-Bo Yu Dao-Yong Wang Zheng-Chao Duan Zhuo Zheng

A series of BoPhoz-type ligands were successfully applied in the rhodium-catalyzed asymmetric hydrogenation of a number of beta-substituted or unsubstituted alpha-(phthalimidomethyl)acrylates, affording good to excellent enantioselectivities. The results suggested that the presence of an N-H proton in the BoPhoz backbone could significantly improve the enantioselectivity, and ligand (Sc,Rp)-1d,...

Journal: :Journal of the American Ceramic Society 2004

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