Surface Microdynamics Phase Transition and Internal Structure of High-Density, Ultrathin PHEMA-b-PNIPAM Diblock Copolymer Brushes on Silicone Rubber

2013 ◽  
Vol 46 (13) ◽  
pp. 5260-5278 ◽  
Author(s):  
K. Jalili ◽  
F. Abbasi ◽  
A. Milchev
Keyword(s):  
Phase Transition ◽  
Internal Structure ◽  
Diblock Copolymer ◽  
Silicone Rubber ◽  
High Density ◽  
Copolymer Brushes

Internal Structure of Ultrathin Diblock Copolymer Brushes

2009 ◽  
Vol 42 (21) ◽  
pp. 8411-8422 ◽  
Author(s):  
Bulent Akgun ◽  
Gökçe Uǧur ◽  
William J. Brittain ◽  
Charles F. Majkrzak ◽  
Xuefa Li ◽  
...  
Keyword(s):  
Internal Structure ◽  
Diblock Copolymer ◽  
Copolymer Brushes

Investigation of the Constitutive Modle of Saturated Frozen Soil Based on Damage

2013 ◽  
Vol 353-356 ◽  
pp. 221-224
Author(s):  
Shuang Zhang ◽  
Chun An Tang ◽  
Lei Li ◽  
Shuai Li
Keyword(s):  
Phase Transition ◽  
Temperature Field ◽  
Stress Field ◽  
Constitutive Model ◽  
Internal Structure ◽  
Damage Mechanics ◽  
Frozen Soil ◽  
Unfrozen Water ◽  
Freezing And Thawing ◽  
Water Field

Saturated frozen soil is composed of soil, unfrozen water and ice, whose subgrade deformation is due to the weakened of internal structure which coursed by damage of the materials in the process of the cycle of freezing and thawing. Considing of the heterogeneity of saturated frozen soil and the phase transition between water and ice, and using of the damage mechanics theory, thermodynamics theory, filtration mechanics theory, a constitutive model of saturated frozen soil is setted up, which is of the coupfing problem of temperature field, water field and stress field. The rationality and validity of the model is verified by the experiment. It is also provided a new method for the study of frozen soil.

Copolymer-Nanoparticles Mixture in a Cylindrical Pore

NANO ◽  
2017 ◽  
Vol 12 (04) ◽  
pp. 1750045
Author(s):  
Jun-Xing Pan ◽  
Yu-Qi Guo ◽  
Yu-Fang Han ◽  
Min-Na Sun ◽  
Jin-Jun Zhang
Keyword(s):  
Phase Transition ◽  
Electrical Conductivity ◽  
Polymer Nanocomposites ◽  
Diblock Copolymer ◽  
Large Diameter ◽  
Small Diameter ◽  
Confinement Effect ◽  
Cylindrical Pore ◽  
Disorder Phase Transition ◽  
Novel Structures

Computer simulation is carried out for investigating the effect of nanoparticles on diblock copolymer morphology under cylindrical confinement. The phase diagrams of polymer nanocomposites with nanoparticle-block wetting strength and concentration of nanoparticles are obtained in different nanopores. In small diameter nanopore, there is almost no influence of nanoparticles on the diblock copolymer morphology because of the stronger confinement effect; in middle diameter nanopore, the system can self-assemble into various novel structures due to the interaction between confinement effect and nanoparticles effect; in large diameter nanopore, due to the stronger effect of nanoparticles, a disorder-order-disorder phase transition occurs with the wetting strength and concentration of nanoparticles increasing. This result can be useful in designing new nanocomposites with advanced electrical conductivity and/or mechanical strength.

Ordered Diblock Copolymer Films on Random Copolymer Brushes

1997 ◽  
Vol 30 (22) ◽  
pp. 6810-6813 ◽  
Author(s):  
P. Mansky ◽  
T. P. Russell ◽  
C. J. Hawker ◽  
M. Pitsikalis ◽  
J. Mays
Keyword(s):  
Diblock Copolymer ◽  
Random Copolymer ◽  
Copolymer Films ◽  
Copolymer Brushes

Self-Assembled Morphologies of Diblock Copolymer Brushes in Poor Solvents

2012 ◽  
Vol 45 (11) ◽  
pp. 4920-4931 ◽  
Author(s):  
Run Jiang ◽  
Baohui Li ◽  
Zheng Wang ◽  
Yuhua Yin ◽  
An-Chang Shi
Keyword(s):  
Diblock Copolymer ◽  
Self Assembled ◽  
Copolymer Brushes

Internal structure and phase transition behavior of stimuli-responsive microgels in PEG melts

Soft Matter ◽  
2017 ◽  
Vol 13 (15) ◽  
pp. 2738-2748 ◽  
Author(s):  
Florian Schneider ◽  
Andreea Balaceanu ◽  
Zhenyu Di ◽  
Yuri B. Melnichenko ◽  
Jürgen Allgaier ◽  
...  
Keyword(s):  
Phase Transition ◽  
Internal Structure ◽  
Stimuli Responsive ◽  
Phase Transition Behavior ◽  
Transition Behavior

scholarly journals Block copolymer microparticles comprising inverse bicontinuous phases prepared via polymerization-induced self-assembly

2019 ◽  
Vol 10 (15) ◽  
pp. 4200-4208 ◽  
Author(s):  
Pengcheng Yang ◽  
Yin Ning ◽  
Thomas J. Neal ◽  
Elizabeth R. Jones ◽  
Bryony R. Parker ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Internal Structure ◽  
Diblock Copolymer ◽  
Self Assembly ◽  
Bicontinuous Phases

Scalable preparation of micrometer-sized diblock copolymer particles exhibiting complex internal structure is achieved by RAFT-mediated polymerization-induced self-assembly (PISA).

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