scholarly journals Synthetic scheme to improve the solid content of biodegradable waterborne polyurethane by changing the association relationships of hydrophilic fragments

RSC Advances ◽  
2020 ◽  
Vol 10 (48) ◽  
pp. 28680-28694 ◽  
Author(s):  
Zhihui Yang ◽  
Guangfeng Wu
Keyword(s):  
Ethylene Glycol ◽  
Waterborne Polyurethane ◽  
Solid Content ◽  
Synthetic Method ◽  
High Solid Content ◽  
Poly Ethylene Glycol ◽  
High Solid ◽  
Molecular Weights ◽  
Waterborne Polyurethanes ◽  
Poly Ethylene

A synthetic method was developed to prepare biodegradable waterborne polyurethanes (BHPUs) with a high solid content by introducing different molecular weights of poly(ethylene glycol) (PEG) into poly(ε-caprolactone) (PCL)-based polyurethanes.

scholarly journals The Relationship between Solid Content and Particle Size Ratio of Waterborne Polyurethane

Coatings ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 401 ◽  
Author(s):  
Jinghui Hou ◽  
Yifei Ma ◽  
Zihan Zhang ◽  
Xuanhe Yang ◽  
Muhua Huang ◽  
...  
Keyword(s):  
Particle Size ◽  
Waterborne Polyurethane ◽  
Close Packing ◽  
Solid Content ◽  
Size Ratio ◽  
Face Centered Cubic ◽  
High Solid Content ◽  
High Solid ◽  
Waterborne Polyurethanes ◽  
Particle Size Ratio

A series of high solid content carboxylic acid/sulfonic acid waterborne polyurethanes was prepared by the emulsion dispersion method. The particle size and solid content were measured. By changing the particle size of the large particles to achieve different particle size ratios, high solid content waterborne polyurethanes were obtained at specific particle size ratios. When the particle size ratio was >7, 4–5 or 2–3, the aqueous polyurethane could reach a higher solid content (more than 56%). This indicated that solid content is related to particle size distribution in high solid content waterborne polyurethane. Moreover, the corresponding three-dimensional stacked models (simple cubic accumulation, face-centered cubic accumulation, cubic close packing and hexagonal closest packing) were established.

scholarly journals Synthesis of stable cationic waterborne polyurethane with a high solid content: insight from simulation to experiment

RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13312-13324 ◽  
Author(s):  
Meng Li ◽  
Fen Liu ◽  
Yu Li ◽  
Xihuai Qiang
Keyword(s):  
Waterborne Polyurethane ◽  
Solid Content ◽  
Morphological Property ◽  
High Solid Content ◽  
High Solid ◽  
Property Relations ◽  
Waterborne Polyurethanes ◽  
Micro Simulation ◽  
Cationic Waterborne Polyurethane

We combined micro-simulation and macro-experiments to explore the structure–morphological–property relations of cationic waterborne polyurethanes with a high solid content.

Synthesis and properties of CO2 copolymer-based waterborne polyurethane with high solid content

2021 ◽  
Vol 28 (7) ◽  
Author(s):  
Wenqi Xian ◽  
Jie Yuan ◽  
Zhengbin Xie ◽  
Wei Ou ◽  
Xiaoxuan Liu ◽  
...  
Keyword(s):  
Waterborne Polyurethane ◽  
Solid Content ◽  
High Solid Content ◽  
High Solid

scholarly journals Sizing and Thermal Stability of Prepared Tetraaminophthalocyaninatocopper(II) Derivatives-grafted Polymers

2016 ◽  
Vol 13 (2) ◽  
pp. 221-234
Author(s):  
Baghdad Science Journal
Keyword(s):  
Thermal Stability ◽  
Ethylene Glycol ◽  
Group Analysis ◽  
Condensation Polymerization ◽  
Grafted Polymers ◽  
Poly Ethylene Glycol ◽  
Molecular Weights ◽  
Poly Ethylene ◽  
Thermal Stability Of ◽  
End Group

Different polymers were prepared by condensation polymerization of sebacic anhydride and adipic anhydride with ethylene glycol and poly(ethylene glycol). Their number average molecular weights were determined by end group analysis. Then, they were grafted on the prepared phthalocyaninatocopper(II) compounds with the general formula (NH2)4PcCu(II) having amino groups of 3,3',3'',3'''- or 4,4',4'',4'''- positions. All prepared polymers, compounds, and phthalocyaninatocopper(II)-grafted polymers were characterized by FTIR. The sizing measurements were carried out in 3,3',3'',3'''- (NH2)4PcCu(II) and 4,4',4'',4'''- (NH2)4PcCu(II) compounds with and without grafting polymers. The results showed that the grafting process led to decreasing in particle size and increasing in surface area. The grafting process was reflected positively on the thermal degradation of 3,3',3'',3'''- (NH2)4PcCu(II) and 4,4',4'',4'''- (NH2)4PcCu(II) grafted polymers. They had higher thermal stability accompanied with higher char residue and T50% weight loss with 3,3',3'',3'''-(NH2)4PcCu(II) and their grafted polymers being the best.

Recent development of brush polymers via polymerization of poly(ethylene glycol)-based macromonomers

2019 ◽  
Vol 10 (18) ◽  
pp. 2212-2222 ◽  
Author(s):  
Xiaojin Zhang ◽  
Yu Dai
Keyword(s):  
Ethylene Glycol ◽  
Synthetic Method ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Brush Polymers

Polymerization of poly(ethylene glycol)-based macromonomers is a facile and versatile synthetic method to generate well-defined brush polymers.

Properties of Waterborne Polyurethane Having Poly(ethylene glycol) Side Chains for Waterproof Breathable Coating

Polymer Korea ◽  
2018 ◽  
Vol 42 (3) ◽  
pp. 417-426
Author(s):  
Baek Beom Seo ◽  
Young Chul Han ◽  
Jeong Han Yang ◽  
Jae Woo Jeon ◽  
Han Mo Jeong
Keyword(s):  
Ethylene Glycol ◽  
Waterborne Polyurethane ◽  
Side Chains ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Synthesis and Assembly of Poly(ethylene glycol)−Lipids with Mono-, Di-, and Tetraacyl Chains and a Poly(ethylene glycol) Chain of Various Molecular Weights

2000 ◽  
Vol 122 (33) ◽  
pp. 7927-7935 ◽  
Author(s):  
Shinji Takeoka ◽  
Katsura Mori ◽  
Haruki Ohkawa ◽  
Keitaro Sou ◽  
Eishun Tsuchida
Keyword(s):  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Molecular Weights ◽  
Poly Ethylene
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