Chemistry of Cellulose Derivatives

Conaway, Rollin F.

doi:10.1021/ie50341a009

Ind. Eng. Chem.

1938

DOI: 10.1021/ie50341a009

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Chemistry of Cellulose Derivatives

Rollin F. Conaway¹

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Cited by 2 publications

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confidence: 99%

Intermicellar Hole and Tube System in Fiber Structure.

Mark¹

1940

J. Phys. Chem.

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Combined chemical and physical investigations of various high-polymeric substances have led to the conviction that they are built up of very long chain-like molecules (3,14,27,48,68,98,100,101). All kinds of information could be obtained regarding the average length of these chains, its distribution over the individual molecules, and its change by different chemical or physical treatment. In connection with these results the question was put forward (36,37,43,50,51,63,65) as to how the mechanical and optical properties of fibers and films consisting of high-molecular substances may be explained by the molecular picture of their fine structure. The first attempts to tackle this problem led to two divergent suggestions, which we can regard as extreme opposing points of view from which we may visualize our problem.One can start with the idea that the crystallized regions which have been found by x-ray analysis,-the so-called micellae,-have the form of longish rod-like crystals with more or less regular surfaces and are arranged in the fibers or films similarly to the bricks in a wall. Figure la explains schematically this conception, which we might call the extreme micellarstructure. It involves a very distinct difference between the space inside the crystal lattice (a, b) and outside of it (c, d); intramolecular and intermolecular 1 Presented at the ninety-seventh meeting of the American Chemical Society, held in Baltimore, Maryland, April, 1939.

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Intermicellar Hole and Tube System in Fiber Structure.

Mark¹

1940

J. Phys. Chem.

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Quality Matters for Historical Plastics: The Past-Making of Cellulose Nitrates for Future Preservation

Quye¹

2017

cahierscfv

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The material degradation of an historical artifact through chemical breakdown may place the object at the end of its useful heritage "life" in terms of aesthetic value and appearance. But all is not lost in the ephemeral world of historical synthetic plastics. The chemical analyses of degraded cellulose nitrate artifacts have unlocked material clues that not only help explain stability variations to guide collection care and preservation, but also bring insight into past manufacturing materials, methods and quality control during production. Translating the industrial materials of a degrading artifact by understanding its past to inform its future can revive it with a new cultural significance, and engages heritage scientists, historians and conservators in an innovative community of "complementary science" as defined by Hasok Chang (2004).

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Chemistry of Cellulose Derivatives

Cited by 2 publications

References 11 publications

Intermicellar Hole and Tube System in Fiber Structure.

Intermicellar Hole and Tube System in Fiber Structure.

Quality Matters for Historical Plastics: The Past-Making of Cellulose Nitrates for Future Preservation

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