Journal ArticleDOI
Photodegradation of polyphenylvinylketone
TLDR
In this paper, the principal mechanism is the abstraction of a hydrogen in position γ to the carbonyl group followed by breaking of the main polymer chain (Norrish type II mechanism).About:
This article is published in Polymer.The article was published on 1967-01-01. It has received 24 citations till now. The article focuses on the topics: Photodegradation & Naphthalene.read more
Citations
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Journal ArticleDOI
Solid-state photochemistry of π-conjugated poly(3-alkylthiophenes)
TL;DR: In this paper, a poly(3-alkylthiophenes) undergo simultaneous photobleaching, cross-linking, and chain scission when irradiated in air with UV or visible light.
Journal ArticleDOI
Energy transfer in polymers—III Polyphenylvinylketone—naphthalene system
TL;DR: In this paper, the authors measured the increase of naphthalene phosphorescence as a function of its concentration at 77°K and showed that triplet energy migration in polyphenylvinylketone main chain scissions is inhibited by naphthane when the polymer is irradiated as films or in solution at room temperature with light of 3660 A.
Journal ArticleDOI
Photolysis of polyvinylbenzophenone
TL;DR: In this article, a triplet state mechanism for photoreduction of polyvinylbenzophenone (PVB) was shown to lead to cyclization when irradiated in dilute solutions and to crosslinking in concentrated solutions and solid films.
Book ChapterDOI
Chapter 3 Photodegradation of Polymers
TL;DR: In this paper, the ultraviolet part of the sunlight that reaches the surface of the Earth is called the “solar ultraviolet.” It represents only about 6% of the total radiation of the sun but is the most damaging to polymers.
References
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Journal ArticleDOI
Mechanisms of Photoreactions in Solutions. I. Reduction of Benzophenone by Benzhydrol
Journal ArticleDOI
Reactivity of Excited States. Intramolecular Hydrogen Atom Abstraction in Substituted Butyrophenones1a
Journal ArticleDOI
Synthese von β‐Ketobasen aus Acetophenon, Formaldehyd und Aminsalzen
C. Mannich,G. Heilner +1 more
Book ChapterDOI
Fluorescence methods in polymer science
Gerald Oster,Yasunori Nishijima +1 more
TL;DR: In this paper, the rotational depolarization of fluorescence is applied to the measurement of micro-Brownian motions of polymer chains and the local viscosity of polymer solutions and melts.
Related Papers (5)
Photochemistry of Ketone Polymers. VII. Polymers and Copolymers of Phenyl Vinyl Ketone
F. J. Golemba,J. E. Guillet +1 more
The Photochemistry of Ketone Polymers. IV. Photolysis of Methyl Vinyl Ketone Copolymers
Y. Amerik,J. E. Guillet +1 more