Abstract:
A method comprising forming a coating solution which comprises a matrix precursor material, a porogen material and a solvent, by selecting a polyarylene matrix precursor material which cross-links to form a matrix with a calculated cross-link moeity density of at least 0.003 moles/ml, and reacting the polyarylene matrix precursor material with a porogen which is linear oligomer or polymer which is formed from monomers comprising alkenyl or alkynyl functional monomers, which has reactive end groups and a weight average molecular weight in the range of less than about 5000, where the porogen is present in amounts in the range of about 10 to less than 50 percent by weight based on total weight of porogens and matrix precursor material.
Abstract:
In one aspect the invention provides a melt process for preparing a functional ized olefin multibiock interpohmer. said process comprising grafting onto the backbone of the olefin multibiock inferpohmer at least one compound comprising at least one "amine-reactive" group to form a grafted olefin multibiock interpolymer. and reacting a primary-secondary diamine or an alkanolamine with the grafted olefin multibiock interpolymer, without the isolation of the grafted olefin multibiock interpolymer.
Abstract:
In one aspect the invention provides a melt process for preparing a functional ized olefin multibiock interpohmer. said process comprising grafting onto the backbone of the olefin multibiock inferpohmer at least one compound comprising at least one "amine-reactive" group to form a grafted olefin multibiock interpolymer. and reacting a primary-secondary diamine or an alkanolamine with the grafted olefin multibiock interpolymer, without the isolation of the grafted olefin multibiock interpolymer.