Studies of Allyl Alcohol Radical Polymerization by PFG-HMQC and HMBC NMR at 750 MHz

2002 ◽  
Vol 35 (7) ◽  
pp. 2602-2607 ◽  
Author(s):  
Sung Joon Oh ◽  
David R. Kinney ◽  
Wei Wang ◽  
Peter L. Rinaldi
2014 ◽  
Vol 1033-1034 ◽  
pp. 619-622
Author(s):  
Hua Jing Gao ◽  
Zhao Hui Jin

A kind of N-substituted maleimide - having two olefinic bonds with different reactivities, (S)-N-Maleoyl-L-leucine allyl ester ((S)-ALMI), was synthesized from maleic anhydride, L-leucine and allyl alcohol. Radical polymerizations were carried out to obtain optically active polymers using 2,2′-azobisisobutyronitrile. Structures of the monomer and polymers obtained were investigated by NMR measurements. In radical polymerizations, the solvents strongly affect the radical polymerization behaviors of (S)-ALMI.


2007 ◽  
Vol 18 (12) ◽  
pp. 953-958 ◽  
Author(s):  
Kokoro Iio ◽  
Kentaro Kobayashi ◽  
Mutsuo Matsunaga

2012 ◽  
Vol 441 ◽  
pp. 478-483 ◽  
Author(s):  
Chuan Xia Huang ◽  
Ling Min Yi ◽  
Hao Yu Yuan ◽  
Chang Qin Chen

A novel approach to modify polymeric pigment dispersants with polysiloxanes was developed based on the sequential atom transfer radical polymerization (ATRP) of styrene (St) and tert-butyl acrylate (tBA), using multifunctional α-bromoisobutyryl-containing poly (dimethylsiloxane) (PDMS-Brm) as the macroinitiators and CuBr/N,N,N,N,N- pentamethyldiethylenetriamine (PMDETA) as the catalyst system. The PDMS-Brm macroinitiators were obtained from the sequential hydrosilylation of commercially available methyl polysiloxanes containing SiH groups with allyl alcohol and then α-bromoisobutyryl bromide. And then, a series of well-defined comb-like graft copolymers with a PDMS backbone and several polystyrene-block-poly (tert-butyl acrylate) (PS-b-PtBA) side-chains were synthesized via ATRP. After hydrolyzing the tert-butyl groups, the comb-like copolymers may serve as multifunctional dispersing agents in the pigment printing.


1969 ◽  
Vol 47 (8) ◽  
pp. 1381-1389 ◽  
Author(s):  
D. R. Smith ◽  
A. J. Tench

A series of alcohols, adsorbed on MgO powder, have been bombarded by a stream of hydrogen atoms at room temperature and the radicals thus formed are detected by electron spin resonance. Methanol, ethanol, n-propanol, iso-propanol, n-butanol, sec-butanol, and allyl alcohol have been studied. The radical species produced have been identified and radical lifetimes varying from minutes to hours at 300 °K have been observed. For methanol, the first monolayer appears to be chemisorbed as methoxy groups whereas the ethanol data indicate that some of the molecules in the first monolayer are physically adsorbed. The higher alcohols form secondary radicals via hydrogen elimination from the primary radical; the isopropyl alcohol radical appears to isomerize before losing hydrogen. Allyl alcohol undergoes hydrogen atom abstraction in preference to addition to the double bond and yields the α-hydroxy-allyl radical. Methanol and ethanol have also been reacted with electrons trapped on a MgO surface to form stable alkoxide ion radicals trapped at oxygen ion vacancies on the surface of the lattice.


2018 ◽  
Vol 8 (3) ◽  
pp. 585-594
Author(s):  
Khdbudin Mulani ◽  
Ravindra Ghorpade ◽  
Surendra Ponrathnam ◽  
Nayaku Chavan ◽  
Kamini Donde

Sign in / Sign up

Export Citation Format

Share Document