Organosilane Effects on Organotitanium-Catalyzed Styrene Polymerization

2007 ◽  
Vol 26 (12) ◽  
pp. 2960-2963 ◽  
Author(s):  
Smruti B. Amin ◽  
Tobin J. Marks
Keyword(s):  
Styrene Polymerization

The Use of Styrenes as Embedding Media for Electron Microscopy

1971 ◽  
Vol 29 ◽  
pp. 488-489
Author(s):  
Edward D. De-Lamater ◽  
Eric Johnson ◽  
Thad Schoen ◽  
Cecil Whitaker
Keyword(s):  
Electron Microscopy ◽  
Surface Tension ◽  
Ultraviolet Light ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Styrene Polymerization ◽  
Radical Initiation ◽  
Tertiary Butyl ◽  
Low Viscosity ◽  
Free Radical Initiation

Monomeric styrenes are demonstrated as excellent embedding media for electron microscopy. Monomeric styrene has extremely low viscosity and low surface tension (less than 1) affording extremely rapid penetration into the specimen. Spurr's Medium based on ERL-4206 (J.Ultra. Research 26, 31-43, 1969) is viscous, requiring gradual infiltration with increasing concentrations. Styrenes are soluble in alcohol and acetone thus fitting well into the usual dehydration procedures. Infiltration with styrene may be done directly following complete dehydration without dilution.Monomeric styrenes are usually inhibited from polymerization by a catechol, in this case, tertiary butyl catechol. Styrene polymerization is activated by Methyl Ethyl Ketone peroxide, a liquid, and probably acts by overcoming the inhibition of the catechol, acting as a source of free radical initiation.Polymerization is carried out either by a temperature of 60°C. or under ultraviolet light with wave lengths of 3400-4000 Engstroms; polymerization stops on removal from the ultraviolet light or heat and is therefore controlled by the length of exposure.

(ArO)TiR3 complexes for highly syndiospecific styrene polymerization

2014 ◽  
Vol 383-384 ◽  
pp. 77-82 ◽  
Author(s):  
Chongjie Xu ◽  
Zhou Chen ◽  
Gang Ji ◽  
Xiu-Li Sun ◽  
Jun-Fang Li ◽  
...  
Keyword(s):  
Styrene Polymerization

Ancillary Ligand Effect on Single-Site Styrene Polymerization:  Isospecificity of Group 4 Metal Bis(phenolate) Catalysts

2003 ◽  
Vol 125 (17) ◽  
pp. 4964-4965 ◽  
Author(s):  
Carmine Capacchione ◽  
Antonio Proto ◽  
Henner Ebeling ◽  
Rolf Mülhaupt ◽  
Klaus Möller ◽  
...  
Keyword(s):  
Single Site ◽  
Ancillary Ligand ◽  
Ligand Effect ◽  
Styrene Polymerization ◽  
Group 4 ◽  
Group 4 Metal

Rare-earth metal bis(aminobenzyl) complexes supported by pyrrolyl-functionalized arylamide ligands: synthesis, characterization and styrene polymerization performance

2018 ◽  
Vol 47 (29) ◽  
pp. 9709-9716 ◽  
Author(s):  
Min Li ◽  
Chaopan Wang ◽  
Hongzhen Xie ◽  
Zehuai Mou ◽  
Yunjie Luo
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Molar Ratio ◽  
Acid Base ◽  
Styrene Polymerization ◽  
Catalyst Systems

Acid–base reaction between Ln(CH2C6H4NMe2-o)3 and 2,5-Me2C4H2NCH2SiMe2NHC6H4R (R = H, (HL1); R = Cl-p, (HL2) in 1 : 1 molar ratio gave L1Ln(CH2C6H4NMe2-o)2 (Ln = Sc (1), La (2), Lu (3) and L2Ln(CH2C6H4NMe2-o)2 (Ln = Sc (4), La (5), Lu (6). The catalyst systems of 2 or 5/[Ph3C][B(C6F5)4] were active for syndio-specific styrene polymerization.

CFD modeling of styrene polymerization in a CSTR

2017 ◽  
Vol 125 ◽  
pp. 46-56 ◽  
Author(s):  
Chao-Zhong Xu ◽  
Jia-Jun Wang ◽  
Xue-Ping Gu ◽  
Lian-Fang Feng
Keyword(s):  
Cfd Modeling ◽  
Styrene Polymerization

Styrene polymerization on mineral filler surfaces, modified with organosilicon peroxides

1986 ◽  
Vol 28 (9) ◽  
pp. 2122-2128 ◽  
Author(s):  
N.V. Yablokova ◽  
Yu.A. Aleksandrov ◽  
O.M. Titova
Keyword(s):  
Mineral Filler ◽  
Styrene Polymerization

Bis-type modifiers in polymerization. I. Behavior of various disulfides in bulk styrene polymerization

1955 ◽  
Vol 17 (84) ◽  
pp. 221-246 ◽  
Author(s):  
R. M. Pierson ◽  
A. J. Costanza ◽  
A. H. Weinstein
Keyword(s):  
Styrene Polymerization
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