ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
A pectic acid, extracted in 11% yield from tobacco stems, contains 93% anhydrogalacturonic acid and some galactose. Plasticized films have been cast from water solution and the influences on tensile properties of casting temperature, extent of neutralization, nature of cation, and plasticizer (glycerol) content have been studied. The crystallinity of the pectate films is shown to increase very markedly with neutralization by sodium hydroxide in the range 40-100% neutralization. The ion exchange capacities of sodium hydrogen pectate films for alkaline earth cations are discussed.
Additional Material:
10 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1964.070080221
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