Rheological changes during a urethane network polymerization

Stephen D. Lipshitz; Christopher W. Macosko

doi:10.1002/pen.760161205

Rheological changes during a urethane network polymerization

Stephen D. Lipshitz
, Christopher W. Macosko

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

123 Scopus citations

Abstract

Trifunctional poly‐ε‐caprolactone polyol was polymerized with a chain‐extended 1,6‐hexane diisocyanate, and the rheology followed by cone and plate flow. Viscosity was found to be independent of shear rate up to at least 10² N.s/m² (10³ poise) and 30s⁻¹. Extent of reaction was monitored by a periodic titration for isocyanate groups. Using branching theory, viscosity was related to extent of reaction and temperature. Such relations should be useful for process models. Normal force data for the curing system are also reported.

Original language	English (US)
Pages (from-to)	803-810
Number of pages	8
Journal	Polymer Engineering & Science
Volume	16
Issue number	12
DOIs	https://doi.org/10.1002/pen.760161205
State	Published - Dec 1976

Publisher link

10.1002/pen.760161205

Find It

Find It at U of M Libraries

Cite this

@article{f4c4f7f48bc44e129645552b3b1388b4,

title = "Rheological changes during a urethane network polymerization",

abstract = "Trifunctional poly‐ε‐caprolactone polyol was polymerized with a chain‐extended 1,6‐hexane diisocyanate, and the rheology followed by cone and plate flow. Viscosity was found to be independent of shear rate up to at least 102 N.s/m2 (103 poise) and 30s−1. Extent of reaction was monitored by a periodic titration for isocyanate groups. Using branching theory, viscosity was related to extent of reaction and temperature. Such relations should be useful for process models. Normal force data for the curing system are also reported.",

author = "Lipshitz, \{Stephen D.\} and Macosko, \{Christopher W.\}",

year = "1976",

month = dec,

doi = "10.1002/pen.760161205",

language = "English (US)",

volume = "16",

pages = "803--810",

journal = "Polymer Engineering \& Science",

issn = "0032-3888",

publisher = "John Wiley and Sons Inc.",

number = "12",

}

TY - JOUR

T1 - Rheological changes during a urethane network polymerization

AU - Lipshitz, Stephen D.

AU - Macosko, Christopher W.

PY - 1976/12

Y1 - 1976/12

N2 - Trifunctional poly‐ε‐caprolactone polyol was polymerized with a chain‐extended 1,6‐hexane diisocyanate, and the rheology followed by cone and plate flow. Viscosity was found to be independent of shear rate up to at least 102 N.s/m2 (103 poise) and 30s−1. Extent of reaction was monitored by a periodic titration for isocyanate groups. Using branching theory, viscosity was related to extent of reaction and temperature. Such relations should be useful for process models. Normal force data for the curing system are also reported.

AB - Trifunctional poly‐ε‐caprolactone polyol was polymerized with a chain‐extended 1,6‐hexane diisocyanate, and the rheology followed by cone and plate flow. Viscosity was found to be independent of shear rate up to at least 102 N.s/m2 (103 poise) and 30s−1. Extent of reaction was monitored by a periodic titration for isocyanate groups. Using branching theory, viscosity was related to extent of reaction and temperature. Such relations should be useful for process models. Normal force data for the curing system are also reported.

UR - https://www.scopus.com/pages/publications/0017273073

UR - https://www.scopus.com/pages/publications/0017273073#tab=citedBy

U2 - 10.1002/pen.760161205

DO - 10.1002/pen.760161205

M3 - Article

AN - SCOPUS:0017273073

SN - 0032-3888

VL - 16

SP - 803

EP - 810

JO - Polymer Engineering & Science

JF - Polymer Engineering & Science

IS - 12

ER -

Rheological changes during a urethane network polymerization

Abstract

Publisher link

Find It

Other files and links

Fingerprint

Cite this