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photolytic degradation

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Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006920
EISBN: 978-1-62708-395-9
... be initiated by external chromophores and intrinsic chain defects, such as α-chlorodiene groups. The photodegradation of PVC is quite complex and proceeds via different mechanisms ( Ref 33 , 34 ). A characteristic degradation pathway of PVC is the photolytic elimination of hydrochloric acid (HCl), also called...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... of which all polymers can be classified, are illustrated in Fig. 23 and described with examples in Table 1 . Thermoplastics should, in theory, have no cross linking, but, in practice, small amounts occur as a result of thermal and oxidative degradation or through the processing of the polymeric material...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... amounts occur as a result of thermal and oxidative degradation or through the processing of the polymeric material in fabricating the component. Fig. 23 Basic elements of polymeric materials. (See Table 1 for explanation of locations). Source: Ref 7 Basic characteristics of engineering...