scholarly journals Organometallic-Mediated Alternating Radical Copolymerization of tert -Butyl-2-Trifluoromethacrylate with Vinyl Acetate and Synthesis of Block Copolymers Thereof

2017 ◽  
Vol 38 (15) ◽  
pp. 1700203 ◽  
Author(s):  
Sanjib Banerjee ◽  
Vincent Ladmiral ◽  
Antoine Debuigne ◽  
Christophe Detrembleur ◽  
S. M. Wahidur Rahaman ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Vinyl Acetate ◽  
Radical Copolymerization ◽  
Tert Butyl

Alternating radical copolymerization of vinyl acetate and tert-butyl-2-trifluoromethacrylate

2018 ◽  
Vol 104 ◽  
pp. 164-169 ◽  
Author(s):  
Sanjib Banerjee ◽  
Vincent Ladmiral ◽  
Cédric Totée ◽  
Bruno Améduri
Keyword(s):  
Vinyl Acetate ◽  
Radical Copolymerization ◽  
Tert Butyl

scholarly journals Bis(formylphenolato)cobalt(II)-Mediated Alternating Radical Copolymerization of tert-Butyl 2-Trifluoromethylacrylate with Vinyl Acetate

Polymers ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 702 ◽  
Author(s):  
Sanjib Banerjee ◽  
Ekaterina Bellan ◽  
Florence Gayet ◽  
Antoine Debuigne ◽  
Christophe Detrembleur ◽  
...  
Keyword(s):  
Vinyl Acetate ◽  
Radical Copolymerization ◽  
Tert Butyl

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

Free Radical Copolymerization of Ethylene with Vinyl Acetate under Mild Conditions

2017 ◽  
Vol 50 (9) ◽  
pp. 3516-3523 ◽  
Author(s):  
A. Zarrouki ◽  
E. Espinosa ◽  
C. Boisson ◽  
V. Monteil
Keyword(s):  
Free Radical ◽  
Vinyl Acetate ◽  
Radical Copolymerization ◽  
Free Radical Copolymerization ◽  
Mild Conditions

scholarly journals Sulfonation and Characterization of Tert-Butyl Styrene/Styrene/Isoprene Copolymer and Polypropylene Blends for Blood Compatibility Applications

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1351
Author(s):  
Bin-Hong Tsai ◽  
Yung-Han Chuang ◽  
Chi-Hui Cheng ◽  
Jui-Che Lin
Keyword(s):  
Block Copolymers ◽  
Chemical Modification ◽  
Blood Compatibility ◽  
Blood Platelet ◽  
Mineral Oil ◽  
Tert Butyl ◽  
Hydrophobic Nature ◽  
Polypropylene Blends ◽  
Uv Ozone

Hydrogenated styrenic block copolymers (HSBCs) have been used in medical tubing for many years due to their high clarity, flexibility, kink resistance, and toughness. However, when it comes to blood storage applications, HSBC compounds’ market has been limited because of their high hydrophobicity, which may trigger platelet adhesion when contacting with blood. HSBC needs to be physically or chemically modified in advance to make it blood compatible; however, HSBC has strong UV/ozone resistance, thermooxidative stability, and excellent processing capability, which increases the difficulty of the chemical modification process as unsaturated dienes has been converted to saturated stable midblocks. Moreover, medical HSBC-containing compounds primarily make up with the non-polar, hydrophobic nature and benign characteristics of other common ingredients (U.S. Pharmacopeia (USP) grades of mineral oil and polypropylene), which complicates the realization of using HSBC-containing compounds in blood-contacting applications, and this explains why few studies had disclosed chemical modification for biocompatibility improvement on HSBC-containing compounds. Sulfonation has been reported as an effective way to improve the material’s blood/platelet compatibility. In this study, hydrogenated tert-butyl styrene (tBS)-styrene-isoprene block copolymers were synthesized and its blends with polypropylene and USP grades of mineral oil were selectively sulfonated by reaction with acetyl sulfate. By controlling the ratio of the hydrogenated tBS-styrene-isoprene block copolymer in the blend, sulfonated films were optimized to demonstrate sufficient physical integrity in water as well as thermal stability, hydrophilicity, and platelet compatibility.

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