申请人:International Business Machines Corporation
公开号:US05550171A1
公开(公告)日:1996-08-27
The invention is a polymeric photoinitiator having the formula: ##STR1## wherein n=10 to 50; each of a and b may be 0-4 while c is 0-5; A is an alkyl or aryl group; X is an anion; and each of R, R', and R" is independently H or one or more groups substituted onto the respective phenyl moieties. The substituted groups are independently selected from various kinds of groups excluding basic groups such as amino groups. Preferably, they are a hydrogen atom, halogen atom (e.g., F, Cl, Br, and I), nitro group, alkoxy group (e.g., CH.sub.3 O-- and C.sub.2 H.sub.5 O--), C.sup.1 -C.sub.18 aliphatic group (e.g., hydrocarbon group such as CH.sub.3 --, C.sub.2 H.sub.5 --, and (CH.sub.3).sub.2 CH--; cyclic hydrocarbon group such as cyclohexyl group; and those which contain a heteroatom in the main chain or substituent group. The substituted groups may also be a C.sub.1 -C.sub.18 aliphatic group having at least one hydroxyl group or a C.sub.3 -C.sub.19 aliphatic group having a group of --OCH.sub.2 CH.sub.2 O--. The invention also comprises a method of synthesizing this polymer and adhesive compositions and computer components using and made with the polymeric photoinitiator of the invention. The invention also comprises a method of reducing outgassing from the component parts of data storage systems.
该发明是一种具有以下式子的聚合物光引发剂:##STR1## 其中n=10到50;a和b各自可以为0-4,c为0-5;A是烷基或芳基基团;X是阴离子;R、R'和R"各自独立地为H或一个或多个取代在相应苯基上的基团。这些取代基团独立地选自各种不包括氨基等碱性基团的基团。最好它们是氢原子,卤素原子(例如F、Cl、Br和I),硝基,烷氧基(例如CH3O-和C2H5O-),C1-C18脂肪基团(例如烃基团,如CH3-、C2H5-和(CH3)2CH-;环烃基团,如环己基基团;以及那些在主链或取代基团中含有杂原子的基团。这些取代基团也可以是至少具有一个羟基的C1-C18脂肪基团或具有--OCH2CH2O--基团的C3-C19脂肪基团。该发明还包括一种合成该聚合物的方法以及使用该聚合物光引发剂制成的粘合剂组合物和计算机组件。该发明还包括一种减少数据存储系统组件部件挥发的方法。