title: Functional polymer laminates from hyperthermal hydrogen induced cross-linking.
abstract: The use of a hyperthermal hydrogen induced cross-linking process to prepare laminates comprising polypropylene, poly(isobutylene-co-isoprene), and poly(vinyl acetate) is described. In this new, milder alternative to conventional plasma techniques, neutral molecular hydrogen projectiles were used to create carbon radicals on impacted surfaces by collision-induced dissociation of C-H bonds, and this process was used to cross-link polymers on a polypropylene surface. It was demonstrated that multiple layers of cross-linked materials could be added, creating polymer laminates with each layer introducing new functionalities and properties. In particular, the present work shows that the process is largely nondestructive toward ester functionalities. First, the esters were grafted to become nonleachable. Then, the esters were subsequently hydrolyzed to convert the surface from hydrophobic to hydrophilic. Afterward, the esters could be recovered by simple esterification demonstrating that further chemical transformations were possible.
authors: Department of Chemistry,  The University of Western Ontario , 1151 Richmond Street, London, Ontario, Canada N6A 5B7.
authors: David B
authors: DB
authors: Thompson
authors: Tomas
authors: T
authors: Trebicky
authors: Patrick
authors: P
authors: Crewdson
authors: Matthew J
authors: MJ
authors: McEachran
authors: Goran
authors: G
authors: Stojcevic
authors: Gilles
authors: G
authors: Arsenault
authors: Woon M
authors: WM
authors: Lau
authors: Elizabeth R
authors: ER
authors: Gillies
mesh_terms: D002070:Butadienes / Q000737:chemistry*; D002627:Chemistry, Physical; D004952:Esters / Q000737:chemistry*; D045782:Hemiterpenes / Q000737:chemistry*; D006358:Hot Temperature; D006859:Hydrogen / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D057927:Hydrophobic and Hydrophilic Interactions; D018625:Microscopy, Atomic Force; D010420:Pentanes / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D011090:Polyenes / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011126:Polypropylenes / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties
chemical_list: D002070:Butadienes; D004952:Esters; D045782:Hemiterpenes; D010420:Pentanes; D011090:Polyenes; D011108:Polymers; D011126:Polypropylenes; D011145:Polyvinyls; C005059:isoprene; C013215:polyvinyl acetate; D006859:Hydrogen; C008967:polyisobutylene