Search Results
Abstract
The thermal degradation of copolymers based on butyl acrylate-methyl acrylate-acrylic acid used as acrylic pressure-sensitive adhesives, especially for bonding of plasticizer containing materials, has been investigated using thermogravimetry and pyrolysis-gas chromatography at 250°C. It was observed that during the pyrolysis of butyl acrylate-methyl acrylate-acrylic acid copolymers unsaturated monomers as methyl acrylate, methyl methacrylate, butyl acrylate and butyl methacrylate were formed. During the side-chain butyl acrylate-methyl-acrylate-acrylic acid-copolymer degradation the presence of methyl alcohol and butyl alcohol was observed.
Abstract
A combination of pyrolysis and gas chromatography were used to investigate thermal degradation products formed from acrylic copolymers containing alkyl acrylate and methacrylate. The method provided an analytical tool for characterizing the chemical composition and structure of the degradation products. Thermal degradation of the synthesized copolymers was analyzed using isothermal (250 °C) pyrolysis–gas chromatography. The degradation process, and the nature and amount of pyrolysis products, provides relevant information about the thermal degradation of acrylic copolymers and the mechanism of pyrolysis. During pyrolysis, the formation of corresponding olefins, alcohols, acrylates and methacrylate was observed.
to hydrolysis [ 7 ]. Experimental Materials Acrylic copolymers based on alkyl methacrylates were synthesized in ethyl acetate at 77 °C by 50 wt% of polymer content with 1-h dosage time of monomer and 3-h
blend of fluoropolymer and acrylic copolymers. Durability and outdoor weathering performance is dependent on the homogeneous blend of the two copolymers [ 1 ]. So, investigative analytical tools are required to study the affect of synthesis parameters
Immobilization of Aspergillus nidulans SU04 cellulase on modified activated carbon
Sorption and kinetic studies
-0290(19980605)58:5<486::AID-BIT4>3.0.CO;2-9 . 9. Johansson , AC , Mosbach , K 1974 Acrylic copolymers as matrixes for the immobilization of enzymes I. Covalent binding or entrapping of various enzymes to bead
, Patel , KH , Patel , RM 2009 Synthesis, characterization, thermal properties and antimicrobial activity of acrylic copolymers derived from 2,4-dichlorophenyl acrylate . J Chil Chem Soc 54 : 228 – 233 10.4067/S0717
-mass spectrometry: use of a macroreticular acrylic copolymer for the efficient removal of the coextracted phase-transfer reagent after derivatization by direct extractive alkylation . J. Chromatogr. B. 1992 , 581 , 57 – 63 . https://doi.org/10
