The thermal decomposition of the FeAc and FeAc-FD acetates (samples with mass around 9 mg contained in an alumina crucible) was studied by TGA/DSC techniques in a Netzsch thermal analyzer (model STA 409 PG/4/G Luxx) with synthetic air atmosphere ([N.sub.2] = 80% in flux of 40 mL/min.; [O.sub.2] = 20% in flux of 10 mL/min.).
Figure 1 shows the X-ray diffractograms for the acetates (FeAc and FeAc-FD).
Our aims are to study thermostability and thermal decomposition kinetics of dextran and highly substituted dextran acetates by using TG, derivative TG (DTG) and second derivative TG (2DTG) analyses.
Thermal degradation of dextran acetates was investigated on SDT Q600 thermal analyzer (TA instruments, New Castle, DE, USA) equipped with Universal Analysis 2000 software v 4.2E.
1), such as cellulose acetate (CA), cellulose acetate propionate (CAP), and cellulose acetate butyrate (CAB), are thermoplastic materials produced through the esterification of cellulose.
Powdered cellulose acetate (CA), free of any plasticizer or additives, was supplied by Eastman Chemical Co., (Kingsport, Tennessee) for the present study.
This document examines the occupational health risks associated with exposure to ethylene glycol monomethyl ether (EGME), ethylene glycol monoethyl ether (EGEE), and their acetates-ethylene glycol monomethyl ether acetate
(EGMEA) and ethylene glycol monoethyl ether acetate
The ethyl acetate
plant is expected to be commissioned during 2013," Sipchem said.
The last line offered is derived from cumyl phenol and is available as either glycidylether or acetate for use as a reactive diluent and flexibilizer for epoxies, PVC, and urethanes.
Products may also be used as internal lubricants and pigment dispersing agents in PS, PVC, and vinyl acetate.
Grades 9-88, 50 and 2-45 are used extensively in polyvinyl acetate homopolymer and copolymer emulsion adhesives, and in acrylic and vinyl-based caulks and sealants.
Products may also be used as external and internal lubricants, catalyst carriers, pigment dispersing agents and mold-release agents in PVC, polypropylene, polystyrene, polyethylene, vinyl acetate and polyvinyl foam.