Special Features of Crazing of Glassy Poly(ethylene terephthalate) in Poly(ethylene oxide) Solutions

Rukhlya, E. G.; Karpushkin, Evgeny A.; Yarysheva, L. M.; Волынский, А. Л.

doi:10.1021/acs.macromol.7b01084

Cited by 3 publications

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the study by Weichold et al and Trofimchuk et al, the authors used a liquid medium in which the samples were deformed as a carrier for nonvolatile additives that remained inside the bulk polymer after the medium evaporated. Rukhlya et al , used a similar method to fabricate a two-component alloy by deformation of high-density polyethylene (HDPE) matrices within a solution of polyethylene oxide (PEO) in ethanol. The authors varied the deformation regimes, such as the percentage of elongation and the deformation rate, and then examined how it affected the volume of absorbed PEO.…”

Section: Introductionmentioning

confidence: 99%

Developing Continuous Submicron-Scale Conductive Interpenetrating Hydrogel Network in Polyethylene Matrices through Controlled Crazing and Polymerization

Kornberg

Thompson

Zhu

2020

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

An approach is described for the synthesis of controlled submicron interpenetrating networks with distinct functional features in commodity polymers, based on a mechanism of crazing and polymerization. In this work, ion conductivity was introduced into polyethylene with only minor losses in its mechanical properties, using a highly branched acrylic hydrogel. Control over the porous network developed in the matrix was gained by the addition of a crystallizing nucleating agent, which was used to increase the number and reduce the size of crystallites. Variation of experimental conditions, such as the degree of elongation and applied reaction pressure, produced different morphologies and conductivities for the co-continuous alloy. The samples were deformed in a liquid medium that possessed an affinity for the matrix material and acted both as a surface-active agent for the crazing and as a reactant for the conductive phase. Without pressure, deforming by 100% strain yielded a conductivity of 5.67 × 10 −7 S•cm −1 for the polymer specimen. Simultaneously increasing the system pressure while constantly straining a specimen enabled further enhancement in conductivity. As a particular example, elongation of 100% and applied pressure up to 2.76 MPa ensured conductivity nearly equal to that of the pure hydrogel at 4.43 × 10 −4 S•cm −1 .

show abstract