“…The following subjects in this category were studied: degradation of polystyrene (1), polymerization of styrene and drying oils (34), rubber structure (56), ethylene polymers (84), pleochroism in linear polymers (140), analysis of plasticizers for polyvinyl chloride (163), acrylic fibers (182), charred cellophane (207), drying oils (210), polynitro phenyl methyl nitramines (230), polyamides (235), identification of accelerators and antioxidants (236), oxidized cellulose (323), rubber derivatives (329), and polyisoprenes (369).…”