A b s t r a c t -S i z e s and shapes o f t h e component phases o f i m m i s c i b l e polymer b l e n d s a r e s t r o n g l y i n f l u e n c e d by t h e v i s c o e l a s t i c p r o p e r t i e s o f each component. F o r m i x t u r e s o f d i f f e r e n t poly(ethylene terephthalatels end polyamide-6 i t can be e s t a b l i s h e d t h a t t h e morphology under shear i s t h e r e s u l t o f t h e v i s c o e i t y r a t i o , which d e t e r m i n e s t h e s i z e o f t h e d r o p l e t -p h a s e , and o f the d i f f e r e n c e i n t h e component e l a s t i c i t i e s a f f e c t i n g t h e shape o f t h e d i spersed phase.

No abstract

No abstract

No abstract

The free-radical copolymerization of donor, acceptor and neutral monomers to ternary copolymers is studied. It is shown that the composition of the ternary copolymers can be calculated from their monomer feed, in case the reactivity ratio (r) values of the three binary subsystems are known. The calculation based on the copolymer equation only considers really existing propagation steps.