Block copolymers with surface-active junction groups, compositions and processes thereof
申请人:International Business Machines Corporation
公开号:US10259907B2
公开(公告)日:2019-04-16
The present invention relates to a novel block copolymer of structure 1,
wherein, A- is a block polymer chain, B is a block polymer chain,
wherein, A- and B- are chemically different, covalently connected polymer chains, which are phase separable and the moiety X(Y(Z)b)a is a junction group, which comprises a surface active pendant moiety Y(Z)b wherein:
a is an integer from 1 to 4 denoting the number of surface active pendant moieties Y(Z)b on X,
b is an integer from 1 to 5 denoting the number of Z moieties on the linking moiety Y,
X is a linking group between the A polymer block, the B polymer block and the moiety Y,
Y is a linking group or a direct valence bond between X and Z; and
Z is a moiety independently selected from, a fluorine containing moiety, a Si1-Si8 siloxane containing moiety or a hydrocarbon moiety with at least 18 carbons, and further wherein the junction group X(Y(Z)b)a has a surface energy less than that that of the block A and less than that of the block B. The invention also relates to a composition comprising the novel copolymer and its use in direct self-assembly processes.
本发明涉及一种结构为 1 的新型嵌段共聚物、
其中,A- 是嵌段聚合物链,B 是嵌段聚合物链、
其中,A- 和 B-是化学性质不同的共价连接聚合物链,可相分离,分子 X(Y(Z)b)a 是连接基团,包括表面活性悬垂分子 Y(Z)b ,其中
a 是 1 到 4 之间的整数,表示 X 上表面活性悬垂分子 Y(Z)b 的数量、
b 是 1 至 5 的整数,表示连接分子 Y 上 Z 分子的数目、
X 是 A 聚合物嵌段、B 聚合物嵌段和分子 Y 之间的连接基团、
Y 是 X 和 Z 之间的连接基团或直接价键;以及
本发明还涉及一种包含新型共聚物的组合物及其在直接自组装工艺中的应用。