๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Macromolecular photochemistry

โœ Scribed by De Schryver, F. C.


Book ID
102938268
Publisher
Wiley (John Wiley & Sons)
Year
1979
Weight
667 KB
Volume
3
Category
Article
ISSN
0025-116X

No coin nor oath required. For personal study only.

โœฆ Synopsis


D i f f e r e n t modes o f i n t e r a c t i o n between t h e r e a l m o f p h o t o c h em i s t r y and p h o t o p h y s i c s and t h e domain o f polymer c h e m i s t r y a r e d i s c u s s e d . A d i s t i n c t i o n between p h o t o i n i t i a t i o n and p h o t o p o l ym e r i z a t i o n i s drawn on t h e b a s i s o f t h e r o l e o f t h e e x c i t e d s t at e e i t h e r i n t h e c h a i n s t a r t i n g o r c h a i n -g r o w i n g p r o c e s s . A tt e n t i o n i s drawn t o s p e c i f i c p r o p e r t i e s o r problems i n t h e phot o c h e m i s t r y and p h o t o p h y s i

c s o f m a c r o m o l e c u l e s . The i n f l u e n c e o f n e i g h b o u r i n g g r o u p s , h i g h l o c a l c o n c e n t r a t i o n s e t c . a r e d i sc u s s e d i n r e l a t i o n t o polymer t r a n s f o r m a t i o n and e x c i m e r format i o n . I . INTRODUCTION Upon e x c i t a t i o n o f a m o l e c u l e w i t h l i g h t i n t h e v i s i b l e and u l t r a -v i o l e t r e g i o n a number o f p r o c e s s e s have t o be c o n s i d e r e d which c a n be d i v i d e d i n two g e n e r a l c l a s s e s : t h o s e t h a t d o n o t i n v o l v e a c h e m i c a l r e a c t i o n and hence a r e d e s i g n a t e d by t h e term p h o t o p h y s i c a l and t h o s e t h a t i n v o l v e b r e a k i n g and f o r m i n g o f bonds and hence a r e c a l l e d p h o t o c h e m i c a l pathways.


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