Synthesis of Sequence-Ordered Copolymers. 4. Glass Transition and Melting Temperatures of Sequence-Ordered and Unordered Ethylene-Vinyl Alcohol and Ethylene-Vinyl Acetate Copolymers

1994 ◽  
Vol 27 (4) ◽  
pp. 1051-1056 ◽  
Author(s):  
Yasuhiko Mori ◽  
Hiroshi Sumi ◽  
Tadamichi Hirabayashi ◽  
Yoshihito Inai ◽  
Kenji Yokota
Keyword(s):  
Glass Transition ◽  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Ethylene Vinyl Acetate ◽  
Ethylene Vinyl Alcohol ◽  
Melting Temperatures

Facile synthesis of norbornene–ethylene–vinyl acetate/vinyl alcohol multiblock copolymers by the olefin cross-metathesis of polynorbornene with poly(5-acetoxy-1-octenylene)

2020 ◽  
Vol 11 (44) ◽  
pp. 7063-7077
Author(s):  
Yulia I. Denisova ◽  
Alexey V. Roenko ◽  
Olga A. Adzhieva ◽  
Maria L. Gringolts ◽  
Georgiy A. Shandryuk ◽  
...  
Keyword(s):  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Ethylene Vinyl Acetate ◽  
Acetoxy Group ◽  
Multiblock Copolymers ◽  
Metathesis Reaction ◽  
Facile Synthesis ◽  
Cross Metathesis ◽  
Bond Hydrogenation

New norbornene−ethylene–vinyl acetate/vinyl alcohol multiblock copolymers are synthesized via the olefin cross-metathesis reaction of polynorbornene with poly(5-acetoxy-1-octenylene) followed by CC bond hydrogenation and acetoxy group deprotection.

Study on the Reaction of Acetylated Konjac Glucomannan and EVA during Processing

2011 ◽  
Vol 695 ◽  
pp. 61-64 ◽  
Author(s):  
Xian Hong Li ◽  
Xiao Yan Lin ◽  
Xue Gang Luo ◽  
Ji Wei Li
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Vinyl Acetate ◽  
Ethylene Vinyl Acetate ◽  
Konjac Glucomannan ◽  
Ft Ir

The transesterification in acetylated konjac glucomannan/ethylene vinyl acetate (AKGM/EVA) melting blend system with the presence of dibutyltin oxide (DBTO) catalyst was investigated by means of a torque rheometer during compounding. The characteristics of the products were evaluated by DSC and FT-IR. The glass transition temperature at about 179.4 °C was found in the DSC curve of AKGM-EVA, the equilibrium torque of AKGM/EVA with 0.25 wt% DBTO was lower than that without DBTO. The results showed that the transesterification took place in the AKGM/EVA blend system.

Water-actuated shape-memory and mechanically-adaptive poly(ethylene vinyl acetate) achieved by adding hydrophilic poly (vinyl alcohol)

2018 ◽  
Vol 98 ◽  
pp. 237-245 ◽  
Author(s):  
Zhi-xing Zhang ◽  
Xiao-dong Qi ◽  
Song-tai Li ◽  
Jing-hui Yang ◽  
Nan Zhang ◽  
...  
Keyword(s):  
Shape Memory ◽  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Ethylene Vinyl Acetate ◽  
Poly Vinyl Alcohol ◽  
Poly Ethylene
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