High χ block copolymers based on chemical modification of poly(t-butyl acrylate) containing block copolymers

2016 ◽  
Author(s):  
Sungmin Park ◽  
Seongjun Jo ◽  
Yonghoon Lee ◽  
Chang Y. Ryu ◽  
Du Yeol Ryu ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Chemical Modification ◽  
Butyl Acrylate

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.

Star-like poly (n-butyl acrylate)-b-poly (α-methylene-γ-butyrolactone) block copolymers for high temperature thermoplastic elastomers applications

Polymer ◽  
2010 ◽  
Vol 51 (21) ◽  
pp. 4806-4813 ◽  
Author(s):  
Azhar Juhari ◽  
Jaroslav Mosnáček ◽  
Jeong Ae Yoon ◽  
Alper Nese ◽  
Kaloian Koynov ◽  
...  
Keyword(s):  
High Temperature ◽  
Block Copolymers ◽  
Butyl Acrylate ◽  
Thermoplastic Elastomers

PEO-Based Block Copolymers and Homopolymers as Reactive Surfactants for AGET ATRP of Butyl Acrylate in Miniemulsion

2008 ◽  
Vol 41 (17) ◽  
pp. 6387-6392 ◽  
Author(s):  
Wenwen Li ◽  
Ke Min ◽  
Krzysztof Matyjaszewski ◽  
François Stoffelbach ◽  
Bernadette Charleux
Keyword(s):  
Block Copolymers ◽  
Butyl Acrylate ◽  
Aget Atrp ◽  
Reactive Surfactants

Synthesis and PSA performance study for novel acrylic and butyl acrylate block copolymers

2002 ◽  
Vol 22 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Michiharu Yamamoto ◽  
Fumiko Nakano ◽  
Tomoko Doi ◽  
Yutaka Moroishi
Keyword(s):  
Block Copolymers ◽  
Butyl Acrylate ◽  
Performance Study

scholarly journals Light Down-Converter Based on Luminescent Nanofibers from the Blending of Conjugated Rod-Coil Block Copolymers and Perovskite through Electrospinning

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 84 ◽  
Author(s):  
Dai-Hua Jiang ◽  
Saburo Kobayashi ◽  
Chih-Chun Jao ◽  
Yoshinobu Mato ◽  
Takuya Isono ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Butyl Acrylate ◽  
Click Reaction ◽  
Soft Segment ◽  
Composite Fibers ◽  
Color Tunable ◽  
Perovskite Quantum Dots ◽  
Novel Strategy

We demonstrated a novel strategy for the preparation of light down-converter by combining rod-coil block copolymers with perovskite quantum dots (QDs) through electrospinning. Reports have shown that polymer deformability can be enhanced by incorporating a soft segment and controlled by varying the rod/coil ratio. Therefore, we first synthesized the rod-coil block copolymer through the click reaction of polyfluorene (PF) and poly(n-butyl acrylate) (PBA). Next, the CsPbBr3@PF8k-b-PBA12k composite fibers were fabricated by blending perovskite through electrospinning. Optical spectral evidence demonstrated the success of the strategy, as light down-converters were prepared through the controlled variance of QD/polymer ratios to achieve tunable color and stretchability. This result reveals the potential of using rod-coil block copolymers to fabricate color-tunable perovskite light down-converters.

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