1. |
Non‐ideal kinetics in free‐radical polymerisation |
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Journal of Applied Chemistry,
Volume 17,
Issue 12,
1967,
Page 339-343
D. G. Smith,
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摘要:
AbstractThe reasons for polymerisation rates not conforming to mathematically predicted relationships are reviewed. Such non‐ideal kinetics may result from one or more of the following causes: invalid basic assumptions, degradative transfer, effect of monomer concentration on rate of initiation, diffusion control of termination, and formation of electron‐donor/acceptor complexes. Details of the characteristics of each effect are gi
ISSN:0021-8871
DOI:10.1002/jctb.5010171201
出版商:John Wiley&Sons, Ltd
年代:1967
数据来源: WILEY
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2. |
Development of new initiators for polymerisation reactions |
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Journal of Applied Chemistry,
Volume 17,
Issue 12,
1967,
Page 344-349
A. Ledwith,
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摘要:
AbstractThe development of simple, stable, and well defined catalyst systems for the initiation of ionic polymerisation is reviewed. The principles involved are illustrated by reference to the use of potassium t‐butoxide in dimethyl sulphoxide for initiating anionic polymerisation of ethylene oxide and of the hexachloroantimonate salt of the triphenyl methyl cation for polymerisation of tetrahydrofuran. Other stable organic cations initiate polymerisation via charge transfer complexes and can give rise to cation‐radicals as intermediates. It is suggested that related cation‐radicals may play a role in lignin biosynt
ISSN:0021-8871
DOI:10.1002/jctb.5010171202
出版商:John Wiley&Sons, Ltd
年代:1967
数据来源: WILEY
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3. |
Absorption in laminar jets |
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Journal of Applied Chemistry,
Volume 17,
Issue 12,
1967,
Page 350-355
W. J. Thomas,
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摘要:
AbstractThe precision of laminar jet techniques for the determination of diffusion coefficients in gas‐liquid systems is considered. It is shown that diffusion coefficients for the CO2‐water system can be obtained with a 1–2% accuracy, but that in many cases reported in the literature this precision is not achieved. This is due to abnormalities in the jet at the receiver or to vibration.The system CO2‐aqueous mono‐ethanolamine is used to assess the accuracy of laminar jets for chemical a
ISSN:0021-8871
DOI:10.1002/jctb.5010171203
出版商:John Wiley&Sons, Ltd
年代:1967
数据来源: WILEY
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4. |
Solubility of chlorine in a brine solution at different pH values |
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Journal of Applied Chemistry,
Volume 17,
Issue 12,
1967,
Page 356-358
T. R. Bott,
S. Schulz,
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摘要:
AbstractThe solubilities of chlorine in a solution containing 250 g/litre of sodium chloride, at different pH values (in the range 1–2.5) have been experimentally determined at different chlorine partial pressures and at temperatures of 50° and 75°. The results show some slight divergence from data previously reported in the literature but these were obtained by a different proced
ISSN:0021-8871
DOI:10.1002/jctb.5010171204
出版商:John Wiley&Sons, Ltd
年代:1967
数据来源: WILEY
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5. |
Removal of Zn2+from the ternary system Zn2+‐Na+‐H+by cation‐exchange resin column |
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Journal of Applied Chemistry,
Volume 17,
Issue 12,
1967,
Page 358-360
W. E. Blake,
J. Randle,
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摘要:
AbstractVery dilute solutions containing zinc sulphate, sodium and sulphuric acid were passed down a column of Zeo‐Karb 225 cation‐exchange resin, and the volume at which zinc first appeared in the effluent (breakthrough volume), together with the volume at which the concentration of zinc in the effluent became equal to its concentration in the influent (equivalent volume), were determi
ISSN:0021-8871
DOI:10.1002/jctb.5010171205
出版商:John Wiley&Sons, Ltd
年代:1967
数据来源: WILEY
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6. |
Liquid‐liquid equilibrium data for the ternary system water‐isopropyl alcohol‐ethylbenzene at 25° |
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Journal of Applied Chemistry,
Volume 17,
Issue 12,
1967,
Page 361-363
E. T. Knypl,
S. Z. Wojdylo,
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摘要:
AbstractLiquid‐liquid equilibrium data at 25° for the system water‐isopropyl alcohol‐ethyl benzene together with refractive index and density data for mixtures on the binodal curve, are presented. A number of correlation methods were found to represent satisfactorily the equilibrium data and comparison is made with known water‐isopropyl alcohol‐benzene and water‐isopropyl alcohol‐t
ISSN:0021-8871
DOI:10.1002/jctb.5010171206
出版商:John Wiley&Sons, Ltd
年代:1967
数据来源: WILEY
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7. |
Thermal decomposition products of polyvinyl chloride |
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Journal of Applied Chemistry,
Volume 17,
Issue 12,
1967,
Page 364-366
Yoshio Tsuchiya,
Kikuo Sumi,
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摘要:
AbstractWhen plastics are involved in a fire they may yield toxic decomposition products. Some quantitative data on the decomposition products of plastics are available in the literature, but it is difficult to assess the danger from the different amounts of various products because of the absence of a suitable method of evaluation. The authors have proposed a method of evaluation based on pyrolysis followed by gas chromatographic analysis and have used it to assess toxicity from various thermal decomposition products of polyvinyl chloride. Hydrogen chloride was found to be the main toxic decomposition product.
ISSN:0021-8871
DOI:10.1002/jctb.5010171207
出版商:John Wiley&Sons, Ltd
年代:1967
数据来源: WILEY
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8. |
Abstracts |
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Journal of Applied Chemistry,
Volume 17,
Issue 12,
1967,
Page 378-456
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ISSN:0021-8871
DOI:10.1002/jctb.5010171208
出版商:John Wiley&Sons, Ltd
年代:1967
数据来源: WILEY
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