Catalytic etherification of glycerol to tert-butyl glycerol ethers using tert-butanol over sulfonic acid functionalized mesoporous polymer

RSC Advances ◽  
2016 ◽  
Vol 6 (86) ◽  
pp. 82654-82660 ◽  
Author(s):  
Pandian Manjunathan ◽  
Manish Kumar ◽  
Sathyapal R. Churipard ◽  
S. Sivasankaran ◽  
Ganapati V. Shanbhag ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Sulfonic Acid ◽  
Solvothermal Method ◽  
Free Radical Polymerization ◽  
Tert Butyl ◽  
Mesoporous Polymer ◽  
Glycerol Ethers ◽  
Tert Butanol

Mesoporous polymers (MP) were synthesized by free radical polymerization of divinylbenzene by a solvothermal method followed by sulfonic acid functionalization by a post synthetic modification with conc.

scholarly journals Sodium nitrite and ascorbic acid: a metal-free combination that controls the free-radical polymerization of tert-butyl methacrylate in water

e-Polymers ◽  
2002 ◽  
Vol 2 (1) ◽  
Author(s):  
Christophe Detrembleur ◽  
Ange Mouithys-Mickalad ◽  
Philippe Teyssié ◽  
Robert Jérôme
Keyword(s):  
Nitric Oxide ◽  
Ascorbic Acid ◽  
Free Radical ◽  
Radical Polymerization ◽  
Sodium Nitrite ◽  
Free Radical Polymerization ◽  
Nitroxyl Radicals ◽  
Butyl Methacrylate ◽  
Metal Free ◽  
Tert Butyl

AbstractA mixture of sodium nitrite and ascorbic acid is able to control the radical polymerization of tert-butyl methacrylate (tBMA) in water at 80°C. Indeed, sodium nitrite is reduced by the ascorbic acid, and the nitric oxide (NO) which is formed insitu is nothing but a promoter of nitroxyl radicals. The radical polymerization of tBMA is thus basically controlled by a nitroxide-mediated process.

scholarly journals Insertion of Degradable Thioester Linkages into Styrene and Methacrylate Polymers

2022 ◽  
Author(s):  
Matthew Rix ◽  
Samuel Higgs ◽  
Eleanor Dodd ◽  
Simon Coles ◽  
Nathaniel Bingham ◽  
...  
Keyword(s):  
Free Radical ◽  
Uniform Distribution ◽  
Radical Polymerization ◽  
Degradation Product ◽  
Free Radical Polymerization ◽  
Butyl Methacrylate ◽  
Ether Cleavage ◽  
Tert Butyl ◽  
Methacrylate Polymers ◽  
First Time

The thionolactone 3,3-dimethyl-2,3-dihydro-5H-benzo[e][1,4]dioxepine-5-thione (DBT) is shown to homopolymerize and, for the first time, copolymerize with styrene and methacrylates, introducing degradable thioester backbone functionality. The rapid copolymerization with styrene was exploited to produce copolymers through free-radical polymerization in a starve-fed semi-batch setup. The copolymerization of DBT with tert-butyl methacrylate under RAFT conditions was hypothesized to involve selective retardation of DBT-terminal chains that led to a more uniform distribution of degradable thioester linkages between chains. Surprisingly, the aminolysis of DBT homopolymers was accompanied by the intramolecular ether cleavage within the primary degradation product leading to the formation of 2,2-dimethylthiirane and salic-ylamides.

Thermal Safety Performance Evaluation for Typical Free Radical Polymerization Initiator of Tert ‐butyl Peroxypivalate

2020 ◽  
Vol 5 (35) ◽  
pp. 10835-10840 ◽  
Author(s):  
Xingliang Wu ◽  
Dabin Liu ◽  
Yabei Xu ◽  
Zichun Meng ◽  
Feiyang Xu ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Safety Performance ◽  
Thermal Safety ◽  
Tert Butyl

A blue to red light sensitive photoinitiating systems based on 3,5-di-tert-butyl-o-benzoquinone derivatives for free radical polymerization

2020 ◽  
Vol 127 ◽  
pp. 109573 ◽  
Author(s):  
Margarita P. Shurygina ◽  
Maria Yu. Zakharina ◽  
Maxim A. Baten'kin ◽  
Alexey N. Konev ◽  
Andrey S. Shavyrin ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Red Light ◽  
Free Radical Polymerization ◽  
Tert Butyl

Non-isothermal Kinetics of Free Radical Polymerization of 2-Phenylethyl (Meth)acrylate

2018 ◽  
Vol 8 (3) ◽  
pp. 585-594
Author(s):  
Khdbudin Mulani ◽  
Ravindra Ghorpade ◽  
Surendra Ponrathnam ◽  
Nayaku Chavan ◽  
Kamini Donde
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Isothermal Kinetics ◽  
Kinetics Of

Oxygen-Initiated Free-Radical Polymerization of Alkyl Acrylates at High Temperatures

2021 ◽  
Author(s):  
Shi Liu ◽  
Lauren Chua ◽  
Ahmad Arabi Shamsabadi ◽  
Patrick Corcoran ◽  
Abhirup Patra ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
High Temperatures ◽  
Free Radical Polymerization ◽  
Alkyl Acrylates
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