LINEAR CHEMOSELECTIVE CARBOSILANE POLYMERS AND METHODS FOR USE IN ANALYTICAL AND PURIFICATION APPLICATIONS
申请人:McGill A. Robert
公开号:US20070003440A1
公开(公告)日:2007-01-04
This invention relates generally to a new class of chemoselective polymer materials. In particular, the invention relates to linear polycarbosilane compounds for use in various analytical applications involving sorbent polymer materials, including chromatoghraphy, chemical trapping, analyte collection, and chemical sensor applications. These polymers have pendant and terminal aryl, alkyl, alkenyl, and alkynyl groups that are functionalized with halogen substituted alcohol or phenol groups, having the general structure:
wherein n is an integer greater than 1;
wherein at least one of R
1
and R
2
is a linear or branched arm having at least one group independently selected from the group consisting of alkyl, alkenyl, alkynyl, and aryl groups, or combinations thereof, and having at least one halogen substituted alcohol or phenol groups attached thereto;
wherein any said R
1
and R
2
aryl groups are attached to said [Si—X-]
n
either directly or through a short hydrocarbon chain;
wherein any remaining said R
1
or R
2
group is a hydrocarbon or carbosilane group; wherein X is a polymer component selected from the group consisting of alkylene, alkenylene, alkynylene, arylene groups, and combinations thereof; and
wherein Z
1
and Z
2
are end groups independently selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, alkyl silanes, aryl silanes, hydroxyl, silicon hydride, alkoxides, phenols, halogen substituted alcohols, halogen substituted phenols, organosilyl, and combinations thereof. These polymeric materials are primarily designed to sorb hydrogen bond basic analytes such as organophosphonate esters (nerve agents and precursors) and nitro-substituted compounds (explosives).
本发明涉及一种新型
化学选择性聚合物材料。具体而言,本发明涉及线性聚碳
硅烷化合物,用于各种涉及吸附聚合物材料的分析应用,包括色谱、
化学捕获、分析物收集和
化学传感器应用。这些聚合物具有侧链和末端芳基、烷基、烯基和炔基基团,这些基团被卤代醇或
酚基团官能化,具有如下通式:
其中n是大于1的整数;其中R1和R2中至少有一个是线性或支链臂,具有至少一个从烷基、烯基、炔基和芳基基团组成的独立选择的群,或这些基团的组合,并且至少有一个卤代醇或
酚基团附着在其上;其中任何R1和R2的芳基基团都直接或通过短碳氢链连接到所述[Si—X-],任何剩余的R1或R2基团是一个碳
硅烷基团;其中X是从烷基、烯基、炔基、芳基团组成的聚合物组分,以及这些组分的组合;其中Z1和Z2是独立选择的末端基团,包括烷基、烯基、炔基、芳基、烷基
硅烷、芳基
硅烷、羟基、
硅氢化物、烷氧基、
酚基、卤代醇基、卤代
酚基、有机
硅基团以及这些基团的组合。这些聚合物材料主要设计用于吸附氢键碱性分析物,例如有机
磷酸酯(神经毒剂和前体)和硝基取代化合物(爆炸物)。