Preparation and study of functionalized polymers containing pendent pesticide‐active groups

Abstract

A number of pesticide monomers containing pentachlorophenol as active group attached to vinyl groups, through oxyethylene as spacer group, have been prepared. The resulting monomers were homopolymerized under free-radical conditions and also copolymerized with styrene and 2-(2-hydroxyeth0xy)ethyl methacry late to introduce hydrophobic and hydrophilic nature to the resulting polymers. In addition, crosslinked copolymers were prepared by using different ratios of divinylbenzene.Data on the pentachlorophenol released through hydrolysis show that the degree of crosslinking, the hydrophilicity and the spacer group, as determined by the chemical structure and the polymer composition, as well as the pH, time and temperature appear to be major factors governing the rate at which a given polymer undergoes hydrolysis.

RAFT polymerization of activated 4‐vinylbenzoates

“…In case for the RAFT polymerization of M2 , polymer P2 a narrow molecular weight distribution could be obtained for all three CTAs. Interestingly, the RAFT polymerization for the pentachlorophenyl ester monomer M3 did not yield as satisfactory results as the RAFT polymerization of M2 did, even though free radical polymerization of M3 proceeded without any difficulty 24. Molecular weight distributions for P3_1 and P3_2 were usually above 1.3.…”

Functional Polymer‐Opals from Core–Shell Colloids

“…Pentafluorophenylacrylate (PFPA), [22] pentachloro-phenylacrylate (PCPA), [23] and trichlorophenylacrylate (TCPA) [24] were synthesized according to the literature.…”