polymer solution
{{Short description|Homogeneous mixture containing dissolved polymers}}
Polymer solutions are solutions containing dissolved polymers.{{cite book
| url = http://www.eng.uc.edu/~beaucag/Classes/Properties/Polymer%20Textbook.pdf
| last = Teraoka
| first = Iwao
| date = 2002
| title = Polymer solutions: an introduction to physical properties
| publisher = John Wiley & Sons
| isbn = 978-0-471-38929-3
}} These may be {{vanchor|liquid solutions|LIQUID}} (e.g. in {{vanchor|aqueous solution|AQUEOUS|WATER}}), or solid solutions (e.g. a substance which has been plasticized).
{{cite web
| url = http://www.cffaperformanceproducts.org/cffa-includes/pdfs/PlasticizerMigration.pdf
| author = Chemical Fabrics and Film Association [CFFA]
| date = n.d.
| title = Plasticizer migration
| website = CFFA Performance Products Division
| access-date = August 11, 2017
| archive-url = https://web.archive.org/web/20170214181813/http://www.cffaperformanceproducts.org/cffa-includes/pdfs/PlasticizerMigration.pdf
| url-status = live
| archive-date = February 14, 2017
}}
The introduction into the polymer of small amounts of a solvent (plasticizer) reduces the temperature of glass transition, the yield temperature, and the viscosity of a melt.
{{cite web|url=http://encyclopedia2.thefreedictionary.com/Polymer+Solution|title=Polymer solutions}} An understanding of the thermodynamics of a polymer solution is critical to prediction of its behavior in manufacturing processes — for example, its shrinkage or expansion in injection molding processes, or whether pigments and solvents will mix evenly with a polymer in the manufacture of paints and coatings.
{{cite book
| last1 = Danner
| first1 = Ronald P.
| last2 = High
| first2 = Martin S.
| date = 1993
| title = Handbook of polymer solution thermodynamics
| publisher = Design Institute for Physical Property Data (DIPPR), American Institute of Chemical Engineers (AIChE)
| location = New York
| language = en
| isbn = 0-8169-0579-7
}}
A recent theory on the viscosity of polymer solutions gives a physical explanation for various well-known empirical relations and numerical values including the Huggins constant, but reveals also novel simple concentration and molar mass dependence.{{Cite journal |last=Schubert |first=Dirk W. |date=2020 |title=Novel Theoretical Self-Consistent Mean-Field Approach to Describe the Conductivity of Carbon Fiber-Filled Thermoplastics: Part III—Application of the Concept to Mechanical Properties of Composites and Polymer Solutions |journal=Advanced Engineering Materials |language=en |volume=22 |issue=9 |pages=2000171 |doi=10.1002/adem.202000171 |issn=1438-1656|doi-access=free }}
Applications
Polymer solutions are used in producing fibers, films, glues, lacquers, paints, and other items made of polymer materials. Thin layers of polymer solution can be used to produce light-emitting devices.
{{cite journal
| last1 = Chang
| first1 = Shun-Chi
| last2 = Yang
| first2 = Yang
| date = 1999
| title = Polymer solution light-emitting devices
| journal = Applied Physics Letters
| volume = 74
| number = 2081
|pages = 2081–2083| doi = 10.1063/1.123764
| bibcode = 1999ApPhL..74.2081C
}}
Guar polymer solution gels can be used in hydraulic fracturing ("fracking").
{{cite patent
| country = US
| number = 5488083 A
| status = patent
| title = Method of gelling a guar or derivatized guar polymer solution utilized to perform a hydraulic fracturing operation
| gdate = 1996-01-30
| fdate = 1994-03-16
| pridate = 1994-03-16
| invent1 = Kinsey, III
| inventor1-first = E. Wayne
| invent2 = Sharif
| inventor2-first = Sharif
| invent3 = Harry
| inventor3-first = David N.
| assign1 = Benchmark Research and Technology, Inc.
| url = https://www.google.com/patents/US5488083
}}
See also
References
{{Reflist | 30em}}
Further reading
- {{cite book
| url = http://www.eng.uc.edu/~beaucag/Classes/Properties/Polymer%20Textbook.pdf
| last = Teraoka
| first = Iwao
| date = 2002
| title = Polymer solutions: an introduction to physical properties
| publisher = John Wiley & Sons
| isbn = 978-0-471-38929-3
}}
{{Authority control}}
{{Polymer-stub}}