Abstract:
IN SOLUTION IN AN ORGANIC SOLVENT, WITH TERT. BUTYL HYPOCHLORITE AND WITH AQUEOUS NITRIC ACID IN A CONCENTRATION NOT HIGHER THAN 85%.
in which R and R'' are Cl or -O-NO2, R and R'' being different. A method for preparing the new polyalkenamer chloro-nitroesters is also disclosed and comprises reacting a polymer the macromolecules of which consist essentially of one or more repeating units -CH CH - (CH2-)n and/or
in which n is a whole number from 2 to 10, and/or formula II:
New soluble substituted polyakenamers are disclosed, the macromolecules of which consist, predominantly or essentially, of one or more repeating units which are the same or different and which have formula I:
Abstract:
LINEAR, HIGH MOLECULAR WEIGHT POLY(DIHALOGENALKENAMERS) ARE DISCLOSED. THE POLYMERS SHOW THE REPEATING UNIT
-CHX-CHX(-CHR)N-
IN WHICH X IS CHLORINE OR BROMINE, R IS HYDROGEN, METHYL OR PHENYL, AND N IS A WHOLE NUMBER FROM 3 TO 10. SOME OF THE POLYMERS ARE AMORPHOUS. OTHER OF THE POLYMERS, THOSE PREPARED FROM STEREOREGULAR POLYALKENAMERS BY THE PRESENT PROCESS, APPEAR TO BE CRYSTALLINE WHEN SUBJECTED TO X-RAY EXAMINATION. ALL OF THESE POLYMERS ARE VULCANIZABLE. THE NEW POLYMERS ARE PREPARED BY REACTING A POLYALKENAMER, THE REPEATING UNIT OF WHICH IS ESSENTIALLY -CH=CH-(-CHR)N- IN WHICH R AND N HAVE THE SIGNIFICANCE MENTIONED ABOVE, IN SOLUTION, WITH CHLORINE OR BROMINE UNTIL THE DOULBE BONDS PRESENT IN THE STARTING POLYALKENAMER TOTALLY DISAPPEAR.
Abstract:
NEW PRODUCTS ARE DISCLOSED WHICH ARE SUBSTITUTED (CO) POLYALKAMERS OF HIGH MOLECULAR WEIGHT AND THE MACROMOLECULES OF WHICH CONSIST ESSENTIALLY OF THE SAME OR DIFFERENT REPEATING UNITS AND ARE CHARACTERIZED IN EXHIBITING A MAIN LINEAR SATURATED HYDROCARBON CHAIN HAVING TWO SIDE SUBSTIUENTS LINKED TO ADJACENT CARBON ATOMS. ONE OF THE SUBSTITUENTS IS A CHLORINE ATOM; THE OTHER IS AN ESTER GROUP. THE NEW SUBSTITUTED (CO) POLYALKAMERS ARE PREPARED BY REACTING A POLYALKENAMER MADE UP OF THE SAME OR DIFFERENT UNITS, DISSOLVED IN METHYLENE CHLORIDE, ALONE OR MIXED WITH METHANOL OR BENZENE, WITH (A) AN ORGANIC MONOBASIC ACID CONTAINING FROM 1 TO 18 CARBON ATOMS AND HAVING A DISSOCATION CONSTANT IN WATER AT 25*C. OF AT LEAST 1.65X**-5, AND (B) AN ALKYL HYPOCHLORITE. THE SUBSTITUTED CO (POLYALKAMERS) OF THIS INVENTION HAVE THE FOLLOWING FORMULA:
-CH(-CL)-CH(-O-R)-(CH(-R''))Z-
IN WHICH R IS A RADICAL CONTAINING FROM 1 TO 18 CARBON ATOMS OF AN ORGANIC MONOBASIC ACID HAVING A DISSOCIATION CONSTANT IN WATER AT 25*C. OF AT LEAST 1.65X10**-5; THE R'' GROUPS ARE HYDROGEN ATOMS OR A PART OF THEM ARE METHYL GROUPS; Z IS A WHOLE NUMBER FROM 3 TO 10; AND THE RATIO BETWEEN THE METHYLENE GROUPS AND THE SUM OF THE CHC1 AND CHOR GROUPS IS COMPRISED BETWEEN 1.5:1 AND 5:1.