摘要:
The invention relates to 1) a hydrocarbonated polymer comprising two alcoxysilane end groups of formula (1), and 2) a method for producing said polymer, an adhesive composition comprising said polymer and the use of said adhesive composition.
摘要:
The present invention relates to a process for producing cycloalkenamer-containing compositions by means of diafiltration. The invention further relates to the use of the cycloalkenamer-containing compositions in the field of packaging materials, especially for food and drink.
摘要:
An alkoxysilane-terminated hydrocarbon polymer of formula (1): Formula (1) in which: - is a double or single bond; - Each of R2, R3, R4 and R5 is H, a halogen, an alcoxycarbonyl or an alkyl, - m and p are each from 0 to 5, - each of R and R' is an alkyl, - Z is an alkylene, interrupted or not by COO, - q is 0 or 1, - r is 0, 1 or 2, and - n is an integer such that the number average molecular weight Mn of the polymer is from 400 to 50,000 g/mol, and the polymolecularity (PDI) of same is from 1.0 to 2.0. Preparation by polymerisation by ring-opening metathesis for 2 hours to 24 hours. Adhesive composition comprising the polymer (1) and crosslinking catalyst. Bonding by assembling two substrates using this adhesive composition.
摘要:
Olefin metathesis polymerization reactions are disclosed, and more particularly ring-opening metathesis polymerization of cyclic olefins with olefinic compounds, such as are derived from seed oils and the like, to form telechelic polymers. In one aspect, a method is provided for carrying out a catalytic ring-opening metathesis polymerization reaction, comprising contacting at least one olefinic compound with at least one cyclic olefin, in the presence of a ruthenium alkylidene olefin metathesis catalyst under conditions effective to allow ring-opening metathesis polymerization of the cyclic olefin, whereby the cyclic olefin polymer formed is terminated with the olefinic compound. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial chemistry.
摘要:
Olefin metathesis polymerization reactions are disclosed, and more particularly ring-opening metathesis polymerization of cyclic olefins with olefinic compounds, such as are derived from seed oils and the like, to form telechelic polymers. In one aspect, a method is provided for carrying out a catalytic ring-opening metathesis polymerization reaction, comprising contacting at least one olefinic compound with at least one cyclic olefin, in the presence of a ruthenium alkylidene olefin metathesis catalyst under conditions effective to allow ring-opening metathesis polymerization of the cyclic olefin, whereby the cyclic olefin polymer formed is terminated with the olefinic compound. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial chemistry.
摘要:
Described herein are compositions having an eight-membered monocyclic unsaturated hydrocarbon, methods and system to separate the eight-membered monocyclic unsaturated hydrocarbon from a hydrocarbon mixture including additional nonlinear unsaturated C8H2m hydrocarbons with 4≦m≦8, by contacting the hydrocarbon mixture with a 10-ring pore molecular sieve having a sieving channel with a 10-ring sieving aperture with a minimum crystallographic free diameter greater than 3Å and a ratio of the maximum crystallographic free diameter to the minimum crystallographic free diameter between 1 and 2, the molecular sieve having a T1/T2 ratio≧20:1 wherein T1 is an element independently selected from Si and Ge, and T2 is an element independently selected from Al, B and Ga, the 10-ring pore molecular sieve further having a counterion selected from NH4+, Li+, Na+, K+ and Ca++.
摘要:
The present disclosure is directed to methods of making a polymer, including exposing a reaction mixture including a strained cyclic unsaturated monomer and an organic initiator to a stimulus to provide an activated organic initiator, whereby the activated organic initiator is effective to polymerize the strained cyclic unsaturated monomer via a 4-membered carbocyclic intermediate to provide a polymer having constitutional units derived from the strained cyclic unsaturated monomer.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Cycloalkenamer-haltigen Zusammensetzungen mittels Diafiltration. Die Erfindung betrifft weiterhin die Verwendung der Cycloalkenamer-haltigen Zusammensetzungen auf dem Gebiet von Verpackungsmaterialien, insbesondere für Lebensmittel.