Preparation of palm ( Elaeis oleifera ) pressed fibre cellulose nanocrystals via cation exchange resin: characterisation and evaluation as Pickering emulsifier

2021 ◽  
Author(s):  
Yee‐Theng Soo ◽  
Shi‐Wan Ng ◽  
Teck‐Kim Tang ◽  
Nur Azwani Ab Karim ◽  
Eng‐Tong Phuah ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Cellulose Nanocrystals ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Elaeis Oleifera

Manufacture of cellulose nanocrystals by cation exchange resin-catalyzed hydrolysis of cellulose

2011 ◽  
Vol 102 (23) ◽  
pp. 10973-10977 ◽  
Author(s):  
Li-rong Tang ◽  
Biao Huang ◽  
Wen Ou ◽  
Xue-rong Chen ◽  
Yan-dan Chen
Keyword(s):  
Cation Exchange ◽  
Cellulose Nanocrystals ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Hydrolysis Of Cellulose ◽  
Hydrolysis Of

Synthesis of 3,4-Dihydropyrano[c]chromenes Using Carbon Microsphere Supported Copper Nanoparticles (Cu-NP/C) Prepared from Loaded Cation Exchange Resin as a Catalyst

2019 ◽  
Vol 16 (2) ◽  
pp. 288-293
Author(s):  
Yogesh W. More ◽  
Sunil U. Tekale ◽  
Nitishkumar S. Kaminwar ◽  
László Kótai ◽  
Tibor Pasinszki ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Cation Exchange ◽  
Copper Nanoparticles ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Environmentally Benign ◽  
High Yield ◽  
Carbon Microsphere ◽  
Catalytic Material ◽  
Operational Simplicity

Aim and Objective: The present study was performed with the aim to develop an efficient and environmentally benign protocol for the synthesis of biologically siginifcant 3, 4-dihydropyrano[c]chromenes using a new catalytic material. The protocol involves the use of a reusable, environment friendly materials and solvents with operational simplicity. Materials and Methods: Carbon microsphere supported copper nanoparticles (Cu-NP/C) prepared from loaded cation exchange resin were synthesized, characterized with well versed analytical techniques such as XRD, SEM and Raman spectroscopy and the synthesized material was used as a catalyst for the environmentally benign synthesis of 3,4-dihydropyrano[c]chromenes. Results: The formation of carbon microsphere supported copper nanoparticles (Cu-NP/C) prepared from loaded cation exchange resin was confirmed by XRD, SEM and Raman spectroscopy which was employed as a heterogeneous material for the synthesis of 3,4-dihydropyrano[c]chromenes. The products formed were characterized by the analysis of spectroscopic data - NMR, IR and mass. The safe catalytic system offers several advantages including operational simplicity, environmental friendliness, high yield, and reusability of catalyst and green chemical transformation. Conclusion: Herein we report an easy and efficient protocol for the one-pot synthesis of dihydropyrano[ c]chromenes using environmentally benign MCR approach in ethanol as the green solvent. The method developed herein constitutes a valuable addition to the existing methods for the synthesis of titled compounds.

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