ChemInform Abstract: SYNTHESIS OF BLOCK COPOLYMERS OF VINYL ACETATE AND ETHYL ACRYLATE BY TELOMERIZATION

1978 ◽  
Vol 9 (47) ◽  
Author(s):  
B. BOUTEVIN ◽  
M. MACRET ◽  
C. MAUBERT ◽  
Y. PIETRASANTA ◽  
M. TANESIE
Keyword(s):  
Block Copolymers ◽  
Vinyl Acetate ◽  
Ethyl Acrylate

Characterization of New Amphiphilic Block Copolymers of N-Vinylpyrrolidone and Vinyl Acetate, 2 - Chromatographic Separation and Analysis by MALDI-TOF and FT-IR Coupling

2010 ◽  
Vol 211 (15) ◽  
pp. 1678-1688 ◽  
Author(s):  
Nick Fandrich ◽  
Jana Falkenhagen ◽  
Steffen M. Weidner ◽  
Bastiaan Staal ◽  
Andreas F. Thünemann ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Vinyl Acetate ◽  
Chromatographic Separation ◽  
Amphiphilic Block Copolymers ◽  
Maldi Tof ◽  
Ft Ir

Molecular dynamics study on the dissolution behaviors of poly(vinyl acetate)‐polyether block copolymers in supercritical CO 2

2020 ◽  
Vol 138 (14) ◽  
pp. 50151
Author(s):  
Houjian Gong ◽  
Wenyu Gui ◽  
Hao Zhang ◽  
Wei Lv ◽  
Long Xu ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Block Copolymers ◽  
Vinyl Acetate

RAFT Polymerization of Monomers with Highly Disparate Reactivities: Use of a Single RAFT Agent and the Synthesis of Poly(styrene-block-vinyl acetate)

2013 ◽  
Vol 66 (12) ◽  
pp. 1564 ◽  
Author(s):  
Lily A. Dayter ◽  
Kate A. Murphy ◽  
Devon A. Shipp
Keyword(s):  
Block Copolymers ◽  
Vinyl Acetate ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Good Control ◽  
Scanning Calorimetry ◽  
Styrene Polymerization ◽  
Reversible Addition ◽  
Raft Agent ◽  
End Group

A single reversible addition–fragmentation chain transfer (RAFT) agent, malonate N,N-diphenyldithiocarbamate (MDP-DTC) is shown to successfully mediate the polymerization of several monomers with greatly differing reactivities in radical/RAFT polymerizations, including both vinyl acetate and styrene. The chain transfer constants (Ctr) for MDP-DTC for both these monomers were evaluated; these were found to be ~2.7 in styrene and ~26 in vinyl acetate, indicating moderate control over styrene polymerization and good control of vinyl acetate polymerization. In particular, the MDP-DTC RAFT agent allowed for the synthesis of block copolymers of these two monomers without the need for protonation/deprotonation switching, as has been previously developed with N-(4-pyridinyl)-N-methyldithiocarbamate RAFT agents, or other end-group transformations. The thermal properties of the block copolymers were studied using differential scanning calorimetry, and those with sufficiently high molecular weight and styrene composition appear to undergo phase separation. Thus, MDP-DTC may be useful for the production of other block copolymers consisting of monomers with highly dissimilar reactivities.

scholarly journals Dispersion Polymerization of Styrene Using Block Copolymers Composed of Polystyrene and Poly(vinyl acetate) as Stabilizers.

1993 ◽  
Vol 50 (4) ◽  
pp. 279-286 ◽  
Author(s):  
Kazutoshi TERADA ◽  
Hirotoshi MIYAZAKI ◽  
Mototsugu YOSHIHARA ◽  
Toshiaki SATO ◽  
Hitoshi MARUYAMA ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Vinyl Acetate ◽  
Dispersion Polymerization

Development of Boron Cage Compound Nanocomposite Elastomers

2009 ◽  
Vol 1239 ◽  
Author(s):  
Eric Allen Eastwood ◽  
Daniel Edward Bowen ◽  
Mark W. Lee
Keyword(s):  
Vinyl Acetate ◽  
Physical Property ◽  
Ethyl Acrylate ◽  
Thermomechanical Properties ◽  
Advanced Materials ◽  
Cage Compounds ◽  
Cage Compound ◽  
Wide Range ◽  
High Boron ◽  
Poly Ethylene

AbstractA wide variety of nanofillers of varying compositions have been used to create polymer nanocomposites, including tubes, wires, fibers, sheets, and particles. A new class of compounds has been identified for use as nanofillers, boron cage compounds. Boron cage compounds are discrete, icosahedral closed cage molecules of high boron content and examples include carboranes and dodecaborate salts. Several chemically modified boron cage compounds have been incorporated into polyolefin elastomers, such as poly(ethylene-co-vinyl acetate), poly(ethylene-co-vinyl acetate-co-vinyl alcohol), poly(ethylene-co-ethyl acrylate), and poly(ethylene-co-octene), among others. The resulting thermal and thermomechanical properties were evaluated in order to determine when plasticization and reinforcement occur to better understand the chemical structure/physical property relationships. Materials with a wide range of properties were produced, however under certain conditions, advanced materials were created with high boron contents, improved thermal stability, mechanical strength, and significant reinforcement.

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