Natural and Synthetic Rubbers

Natural and Synthetic Rubbers

“…Chambers' method for the direct determination of oxygen by application of the Unterzaucher method, which was reviewed last year (27), has since been published (60).…”

“…The only article that was found on the determination of the amount of unsaturation of butadiene rubbers by' chemical methods during the y'ear is an English translation (243) of a 1947 Russian article which was referred to in last y'ear's review (27).…”

“…in this journal on analytical methods pertaining to natural and synthetic rubbers. The first review (27) covered the period from about 1944 until the latter months of 1948, and dealt only with chemical methods. The present review, which covers the past year, takes up where the previous one left off and includes articles appearing in most of the domestic journals through November 1949 and foreign journals through October 1949.…”

Natural and Synthetic Rubbers

“…A number of papers have been included that, while they do not present specific new methods, either give general background or present fundamental information which should be helpful in the development of new methods. As in the case of previous reviews (1)(2)(3)(4)(5)(6)(7)(8)(9), test methods applied to compounding or other ingredients usually have been omitted, except for those involving their qualitative or quantitative determination in rubber. Similarly, methods devised to test the raw materials used in the manufacture of synthetic rubbers have also been omitted.…”

Natural and Synthetic Rubbers

“…the chemical and physical methods reported in the literature during the period since the previous review (S') up to October 1960. As in the case of previous reviews (1)(2)(3)(4)(5)(6)(7)(8), test methods applied to compounding ingredients have been omitted except for those involving their qualitative or quantitative de-termination in rubber. Similarly, methods devised to test the raw materials used in the manufacture of synthetic rubbers have also been omitted.…”