The main aim of this work was the preparation and characterization of the soluble amine end-capped HBPAA and its fully imidized form, hyperbranched polyimide (HBPI), and their use as a multi-functional crosslinking agent
of the linear polyimide MI.
Traditionally, harsh chemical crosslinking agents
have been applied, but chemical cross-linking often compromises biocompatibility of collagen by releasing toxic residuals.
0 3B B B Table 5: Appearance and tackiness of the composite crosslinked films Crosslinking agent
type Appearance Handling Without crosslinking agent
Almost colorless, Very sticky (film of PA) transparent Gelatin (film of PA--G-2) White, translucent Not sticky, smooth Casein (film of PA--C-2) Light yellow, Not sticky, smooth transparent Table 6: Various thermal analysis parameters for substances of Fig.
Subsequently during high temperature curing, a stronger hydrogen bonding system is established along the ether linkages between the cellulose and crosslinking agent
After stirring for 30 min, appropriate amount of crosslinking agent
A novel natural-based superabsorbent composite polymer was prepared by graft copolymerization of acrylic acid onto gelatin backbones in the presence of a crosslinking agent
The resulting transparent and homogenous hydrogels do not contain traceable levels of residual crosslinking agent
and can tolerate extrusion through needles of different gauge sizes without significant alteration of their rheological properties.
In this article, PDMS/PVDF composite membranes were prepared by curing PDMS with three kinds of crosslinking agents
The aim of the present study is to assess the effect of various crosslinking agents
on the physical properties of acellular swim bladder of fish origin.
At the October meeting of the British Society, Andrew Brown, of Cytec Surface Specialties, presented a talk on a new crosslinking agent
for high durability industrial coatings.
The resol-type phenolic resin-based resin crosslinking agent
is preferably an alkylphenol-formaldehyde resin.
The effect of crosslinking agent
and blowing agent content on the properties of the enhanced PBS foams were investigated in details, such as density, void fraction (YF), average size of the cells, average cell wall thickness, tensile strength, and hardness.