You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.


    Chapter 4 Cationic Photoinitiators and Initiation Mechanism

    Published: Jan 2002

      Format Pages Price  
    PDF (268K) 17 $25   ADD TO CART
    Complete Source PDF (4.1M) 96 $248   ADD TO CART


    CATIONIC PHOTOINITIATORS are onium compounds that photolyze to form Lewis or Bronsted acids when excited with ultraviolet radiation. In the photolysis process, free radicals are also formed, and therefore, both epoxides and ethylenically unsaturated compounds can be polymerized in a dual-cure process. Although photoinitiators in use today generate Bronsted or protonic acids from iodonium or sulfonium metallic salts, it is important from a historical standpoint to discuss first the Lewis-acid generating or diazonium type photoinitiators.

    Committee/Subcommittee: D01.46

    DOI: 10.1520/MNL10419M

    CrossRef ASTM International is a member of CrossRef.

    ISBN10: 0-8031-2095-8
    ISBN13: 978-0-8031-2095-2