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1Molecular And Rheological Characterization Of Poly-3-Alkylthiophenes

Gw Heffner,We Rochefort,Ds Pearson

1990ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY（1990）

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2A New Approach to Capillary Viscometry of Thermoset Transfer Molding Compounds

HE BAIR, LL BLYER, P HUBBAUER,S MATSUOKA,DS PEARSON,GW POELZING, RC PROGELHOF,WG THIERFELDER

A new capillary rheometer incorporated in an instrumented transfer molding press has been developed. This rheometer is effective for determining the viscosity characteristics of thermoset molding compounds under both isothermal and typical molding conditions. In examples of the rheometer's utility, the power law indices of two commercial epoxy molding compounds have been determined to be approximately 0.7. Additionally it has been shown that preconditioning typical epoxy compounds at 47 percent relative humidity causes a viscosity decrease of about 40 percent owing to plasticization of the epoxy resin.

1986Polymer Engineering and Science（1986）引用：16

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3Viscoelasticity of Randomly Cross-Linked Polymer Networks - Relaxation of Dangling Chains

JG CURRO,DS PEARSON,E HELFAND

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTViscoelasticity of randomly crosslinked polymer networks. Relaxation of dangling chainsJohn G. Curro, Dale S. Pearson, and Eugene HelfandCite this: Macromolecules 1985, 18, 6, 1157–1162Publication Date (Print):June 1, 1985Publication History Published online1 May 2002Published inissue 1 June 1985https://pubs.acs.org/doi/10.1021/ma00148a020https://doi.org/10.1021/ma00148a020research-articleACS PublicationsRequest reuse permissionsArticle Views666Altmetric-Citations72LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

1985MACROMOLECULES（1985）引用：77

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4Statistics of Unentangled Polymer Loops and Primitive Paths

E HELFAND,DS PEARSON

AbstractThe concepts of reptation and the tube model have been successfully used to describe the dynamics of a system of entangled polymers. Attempts to apply this model have given rise to questions about the statistics of a polymer, represented by a lattice random walk, and its entanglement with an obstacle net. We have determined the number of ways such a walk can form unentangled closed loops of various types. If one reels in a general random walk from its ends, pulling out unentangled loop, one is left with the so‐called primitive path, which is taken to represent the path of the tube. The probability that an N step random walk has a K step primitive path has been calculated. Asymptotic formulas for this probability are presented.

1985Journal of Polymer Science Polymer Symposia（1985）引用：3

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5RHEOLOGICAL BEHAVIOR OF BRANCHED POLYMER-MOLECULES

DS PEARSON,E HELFAND

1983FARADAY SYMPOSIA OF THE CHEMICAL SOCIETY引用：3

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6Calculation of the Non-Linear Stress of Polymers in Oscillatory Shear Fields

E HELFAND,DS PEARSON

AbstractComplex moduli are calculated for the lowest‐order deviations from linearity of the stress in an oscillatory shear field. The calculations involve solution of an equation, recently proposed by Doi, which goes beyond the “independent alignment approximation” of the Doi‐Edwards theory of polymer dynamics. The new equation incorporates various reptative motions of a polymer in the effective constraining tube induced by entanglements, viz. Brownian motion along the tube and the systematic motion in response to changes in the length of the tube accompanying affine deformation.

1982JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS（1982）引用：49

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7Concentration-Dependence Of The Viscosity Of Polyisoprene Solutions

Ds Pearson, A Mera,We Rochefort

1981ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY（1981）引用：1

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8LARGE-AMPLITUDE OSCILLATORY BEHAVIOR OF POLYSTYRENE SOLUTIONS

DS PEARSON,WE ROCHEFORT,E HELFAND

1981JOURNAL OF RHEOLOGY（1981）

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9Elastic Properties Of Well-Characterized Ethylene-Propylene Co-Polymer Networks

Ds Pearson,Ww Graessley

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElastic Properties of Well-Characterized Ethylene-Propylene Copolymer NetworksDale Pearson and William GraessleyCite this: Macromolecules 1980, 13, 4, 1001–1009Publication Date (Print):July 1, 1980Publication History Published online1 May 2002Published inissue 1 July 1980https://doi.org/10.1021/ma60076a047RIGHTS & PERMISSIONSArticle Views384Altmetric-Citations108LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-Alerts Get e-Alerts

1980MACROMOLECULES（1980）引用：160

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10NON-LINEAR DYNAMICS OF POLYMER MELTS

DS PEARSON,WE ROCHEFORT

1980BULLETIN OF THE AMERICAN PHYSICAL SOCIETY（1980）

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11ELASTIC PROPERTIES OF WELL-CHARACTERIZED RUBBER NETWORKS

DS PEARSON,WW GRAESSLEY

1979BULLETIN OF THE AMERICAN PHYSICAL SOCIETY（1979）

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