Weakening of Solvation-Induced Ordering by Composition Fluctuation in Salt-Doped Block Polymers

2021 ◽  
pp. 545-550
Author(s):  
Xian Kong ◽  
Kevin Jia-Yu Hou ◽  
Jian Qin
Keyword(s):  
Block Polymers ◽  
Composition Fluctuation

scholarly journals Tailored Porous Carbons Enabled by Persistent Micelles with Glassy Cores

2021 ◽  
Author(s):  
Eric R. Williams ◽  
Paige L. McMahon ◽  
Joseph Reynolds III ◽  
Jonathan L Snider ◽  
Vitalie Stavila ◽  
...  
Keyword(s):  
Device Performance ◽  
Carbonaceous Materials ◽  
Porous Carbons ◽  
Regular Feature ◽  
Block Polymers ◽  
Electrochemical Devices

Porous nanoscale carbonaceous materials are widely employed for catalysis, separations, and electrochemical devices where device performance often relies upon specific and well-defined regular feature sizes. The use of block polymers...

Mechanical and structural consequences of associative dynamic cross-linking in acrylic diblock copolymers

2021 ◽  
Author(s):  
Jacob Ishibashi ◽  
Ian Pierce ◽  
Alice Chang ◽  
Aristotelis Zografos ◽  
Bassil El-Zaatari ◽  
...  
Keyword(s):  
Viscoelastic Properties ◽  
Diblock Copolymers ◽  
Microphase Separation ◽  
Network Connectivity ◽  
Ethyl Acrylate ◽  
Cross Linking ◽  
Cross Link ◽  
Block Polymers ◽  
Link Density ◽  
Cross Link Density

<p>The composition of low-T<sub>g</sub> <i>n</i>-butylacrylate-<i>block</i>-(acetoxyaceto)ethyl acrylate block polymers is investigated as a strategy to tune the properties of dynamically cross-linked vinylogous urethane vitrimers. As the proportion of the cross-linkable block is increased, the thermorheological properties, structure, and stress relaxation evolve in ways that cannot be explained by increasing cross-link density alone. Evidence is presented that network connectivity defects such as loops and dangling ends are increased by microphase separation. The thermomechanical and viscoelastic properties of block copolymer-derived vitrimers arise from the subtle interplay of microphase separation and network defects.</p><div><br></div><p></p>

scholarly journals Presence in Lume’s Work as Temporal Enlargement and Oceanic Feeling

2021 ◽  
Vol 11 (3) ◽  
Author(s):  
Conrado Augusto Gandara Federici ◽  
Odilon José Roble
Keyword(s):  
Aesthetic Experience ◽  
Composition Fluctuation

ABSTRACT The article combines efforts to read Lume’s aesthetic based on possible philosophical connections supported by the notion of temporal enlargement and the Freudian concept of oceanic feeling. The philosophical-conceptual methodology was used to this end. The ideas of composition, fluctuation and saturation plane, delirium, the dissolution of borders and a sense of holistic connection stood out. Presence was the articulating element of Lume’s aesthetic, which is framed by the aforementioned conceptual principles. By exposing two possible receptions, the text intends the comparison with such knowledge to add layers of expansion to the theatrical aesthetic experience, not aiming to reveal meanings, but rather to propose intelligibilities.

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