Effect of flow on solutions of rod-coil block co-polymers

Curgul, Sezen; Erman, Burak

doi:10.1016/j.polymer.2004.10.075

Cited by 3 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…27 Curgul and Erman conducted a theoretical study of rod-coil diblock copolymer solutions in elongational flow, suggesting that enhanced microphase separation due to flow alignment of the rigid blocks may occur. 28 Gopalan et al prepared a model rodcoil block copolymer system using a mesogen-jacketed liquid crystalline polymer (MJLCP) rod block and studied the impact of changes from linear to star block copolymers on the rheology. 29 They were able to assemble master curves using timetemperature superposition for their polymers; however, only a relatively weak microphase separation transition was observed.…”

Section: Introductionmentioning

confidence: 99%

Rheological properties and the mechanical signatures of phase transitions in weakly-segregated rod-coil block copolymers

et al. 2009

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Rheological properties and the mechanical signatures of phase transitions in weakly-segregated rod-coil block copolymers

et al. 2009

View full text Add to dashboard Cite

Effect of electrical field on polypeptide phase behavior involving a conformationally coupled anisotropic–isotropic transition

Chen

Lin

et al. 2007

Polymer

View full text Add to dashboard Cite

Shear flow behaviors of rod-coil diblock copolymers in solution: A nonequilibrium dissipative particle dynamics simulation

Lin

Wang

et al. 2017

The Journal of Chemical Physics

View full text Add to dashboard Cite

We employed the nonequilibrium dissipative particle dynamics method to study the shear flow behaviors of rod-coil diblock copolymers in solutions. The effects of copolymer concentrations and molecular architecture on the rheology are investigated. The simulated results show that the shear flow behaviors change from Newtonian to non-Newtonian when the morphologies transform from micelles to gels by increasing the copolymer concentrations. For the non-Newtonian systems, it was found that the curve of the viscosity versus shear rate is divided into three regions, that is, shear thinning region I, platform region II, and shear thinning region III. From the physical origin, the three-region behavior is governed by the distinct flow behaviors of the rod and coil blocks and their different time scale in response to the shear field. Additionally, by tuning the molecular architectures, the simulated results reveal that the slopes in region I and region III are influenced by the length of rod and coil blocks, respectively. The present research revealed the microscopic origin of the complex rheological properties of rod-coil diblock copolymers in solutions and could provide useful information for preparing functional materials based on block copolymers.

show abstract

Effect of flow on solutions of rod-coil block co-polymers

Cited by 3 publications

References 20 publications

Rheological properties and the mechanical signatures of phase transitions in weakly-segregated rod-coil block copolymers

Rheological properties and the mechanical signatures of phase transitions in weakly-segregated rod-coil block copolymers

Effect of electrical field on polypeptide phase behavior involving a conformationally coupled anisotropic–isotropic transition

Shear flow behaviors of rod-coil diblock copolymers in solution: A nonequilibrium dissipative particle dynamics simulation

Contact Info

Product

Resources

About