Free-Radical Polymerization of 2-Phenyl-5-(4'-vinyl)phenyltetrazole. Reactivity Ratios and Q and e Values

1969 ◽  
Vol 2 (5) ◽  
pp. 468-474 ◽  
Author(s):  
J. K. Stille ◽  
L. D. Gotter
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Reactivity Ratios

scholarly journals Polymers Based on Methacrylate Bearing Coumarin Side Group: Synthesis via Free Radical Polymerization, Monomer Reactivity Ratios, Dielectric Behavior, and Thermal Stabilities

2012 ◽  
Vol 2012 ◽  
pp. 1-13 ◽  
Author(s):  
Nursel Ayaz ◽  
Feride Bezgin ◽  
Kadir Demirelli
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Reactivity Ratio ◽  
Dielectric Behavior ◽  
Reactivity Ratios ◽  
Monomer Reactivity Ratios ◽  
Thermal Stabilities ◽  
Dichloromethane Solution ◽  
H Nmr

Copolymerization and homopolymerization of 7-methacryloyloxy coumarin (MAOC) and its copolymers with benzyl methacrylate (BMA), methyl methacrylate (MMA), ethyl methacrylate (EMA), and isobuthyl methacrylate (IBMA) were performed by the free radical polymerization method (FRP) at low conversions (<15%). The resulting polymers were characterized by FTIR, 1H NMR, GPC, DSC, and TGA. The monomer reactivity ratios of MAOC and BMA were computed using Kelen-Tüdös (K-T) and Fineman-Ross (F-R) methods and were found to be r1=0.45, r2=1.29; r1=0.46; r2=1.33, respectively (r1 is monomer reactivity ratio of MAOC). Blends of poly(MAOC) and poly(BMA) obtained via FRP method were prepared by casting films from dichloromethane solution and were characterized by DTA and TGA techniques. Dielectric measurements for MAOC homopolymer and its copolymers with EMA, MMA, and IBMA were carried out by means of an impedance analyzer as a function of temperature and frequence. Dielectric properties of polymer samples prepared in a plate form were measured at room temperature over the frequency range 0.1 kHz–2 MHz and given as compared with each other.

scholarly journals Synthesis, Characterization and Antimicrobial studies of N-tert-amyl acrylamide (NTA) and 7-methacryloyloxy-4- methylcoumarin (MACU) Copolymers

YMER Digital ◽  
2021 ◽  
Vol 20 (12) ◽  
pp. 341-349
Author(s):  
S Anbarasan ◽  
◽  
P Vimala ◽  
P Pazhanisamy ◽  
◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
1H Nmr ◽  
Free Radical Polymerization ◽  
Reactivity Ratios ◽  
Nmr Analysis ◽  
Antimicrobial Studies ◽  
Bacteria And Fungi

Copolymers of N-tert-amylacrylamide (NTA) and 7-methacryloyloxy-4-methylcoumarin (MACU) were prepared by free radical polymerization in DMF at 600C using AIBN as an initiator. The copolymer compositions were determined by 1H-NMR analysis. The reactivity ratios of monomers were determined by Fineman-Ross (FR) (r1 = 1.33 and r2 = 0.60), KelenTudos (KT) (r1 = 1.33and r2 = 0.59). The r1.r2 = 0.798 indicated the formation of random copolymers.Tg found to increasing feed content of MACU. The antimicrobial studies showed that the copolymers are active against both Bacteria and Fungi.

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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