Solid State Behavior of Linear Polyesters and Polyamides |
From inside the book
Results 1-3 of 26
Page 8
with polymers from hexamethylene diamine and adipic acid , the time re quired at
216°C is 16 h . If the molecular weight of the precondensate is increased to 4 ,
000 , however , 2 h are sufficient ( 7 ] . Since the temperatures are lower than in ...
with polymers from hexamethylene diamine and adipic acid , the time re quired at
216°C is 16 h . If the molecular weight of the precondensate is increased to 4 ,
000 , however , 2 h are sufficient ( 7 ] . Since the temperatures are lower than in ...
Page 38
For example , solid state polycondensation of p - acetoxy benzoic acid is
catalyzed by substances of very different chemical composition , e . g . , boric acid
, urea , benzidine , terephthalic acid ( 90 ) . This has similarly been observed with
w ...
For example , solid state polycondensation of p - acetoxy benzoic acid is
catalyzed by substances of very different chemical composition , e . g . , boric acid
, urea , benzidine , terephthalic acid ( 90 ) . This has similarly been observed with
w ...
Page 57
The following compounds were used as coupling agents : pyromellitic acid ,
benzophenone tetracarboxylic acid , oxalic acid , malonic acid , pentaerythrol ,
pyromellitic acid with Zn ( OAc ) 2 ( 183 ) . Healing was conducted in vacuum at
240°C ...
The following compounds were used as coupling agents : pyromellitic acid ,
benzophenone tetracarboxylic acid , oxalic acid , malonic acid , pentaerythrol ,
pyromellitic acid with Zn ( OAc ) 2 ( 183 ) . Healing was conducted in vacuum at
240°C ...
What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
Common terms and phrases
achieved acid additional amorphous annealing Appl applied aspect average behavior block bonding changes Chem chemical composites conclusion constant crack crystallinity crystallization curves decreases deformation density depends determined diameter diffusion direction distribution domains draw ratio drawn effect element energy Equation experiments extrusion factor fatigue fiber Figure fracture fracture toughness function given groups growth healing heat higher important increasing indicated initial length linear load lower material matrix maximum measurements mechanical melt method microfibrils microstructure modulus molded molecular weight molecules nylon nylon 66 observed obtained occurs orientation peak phase Phys polyamides polycondensation polyesters Polymer Sci polymerization properties range reaction regions reported Reprinted from Ref respectively samples SAXS scattering shows solid solid state polycondensation solid-state specimen speed stage strain strength stress structure studied Table temperature tensile units values yield