CN111533941A - 一种利用水凝胶涂层实现刚性材料宏观超分子组装的方法 - Google Patents
一种利用水凝胶涂层实现刚性材料宏观超分子组装的方法 Download PDFInfo
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Abstract
本发明公开一种利用水凝胶涂层实现刚性材料宏观超分子组装的方法,利用含超分子官能团的水凝胶涂层组合实现刚性材料宏观超分子组装,含超分子官能团的水凝胶涂层组合包括第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层,两者包括具备超分子识别与组装功能的超分子相互作用基团。首先分别将第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层以共价键形式接枝到刚性材料A和刚性材料B表面;然后将刚性材料A和刚性材料B宏观超分子组装。本发明在刚性材料表面以共价键形式连接具有超分子识别组装功能的水凝胶涂层,借助表面水凝胶涂层的超分子相互作用,实现刚性材料的宏观超分子组装。
Description
技术领域
本发明属于超分子组装领域,具体涉及一种利用含超分子官能团的水凝胶涂层实现刚性材料宏观超分子组装的方法。
背景技术
1987年诺贝尔化学奖授予了超分子化学研究方面的佩德森(C.JPedersen)、莱恩(J.MLehn)和克来姆(D.JCram),莱恩将超分子化学定义为研究两种或两种以上的化学物种通过分子间相互作用缔结而成的具有特定结构和功能实体的科学,研究涉及的分子间相互作用包括静电、氢键、亲疏水作用、π-π相互作用、配位作用等非共价键相互作用。
宏观超分子组装(Macroscopicsupramolecularassembly,MSA),是指在十微米以上的构筑基元表面,通过表面化学修饰引入超分子识别基团,再利用界面组装构筑超分子材料的过程,已经发展成为超分子化学领域的一个新兴研究方向。与传统分子自组装通过多级多层次组装制备体相超分子材料的方法相比,宏观超分子组装以微米以上尺度的材料为构筑基元直接构建体相材料,极大地缩短了从构筑基元到体相材料的尺度跨度;并且,构筑基元的设计和组装过程的调控都十分灵活,能够简便易行地调控体相材料的结构与功能,已经发展成为了一种自下而上构建三维有序结构以及体相超分子材料的新方法。目前,国内外宏观超分子组装主要以弹性模量较低的水凝胶软材料作为构筑基元,发展了主-客体识别、氢键、配位键、静电、DNA杂化等超分子相互作用主导的组装。宏观超分子组装易于通过低弹性模量材料实现,其原因在于,构筑基元表面具有良好的柔性和高度的流动性,为其表面修饰的超分子官能团提供了较高的分子活动能力,使宏观表面接触时易于发生多重相互作用,增强表面结合强度而实现组装。然而,对于弹性模量较高的刚性构筑基元(金属、无机物、高模量高分子材料),材料表面形变能力较差,宏观表面的官能团分布受表面粗糙度、浸润性等因素影响,大部分官能团难以达到分子间作用力程,无法发生多位点相互作用,界面结合能力弱,难以实现宏观超分子组装。因此,宏观超分子组装的研究受限于低模量材料,刚性材料的高效组装成为了该领域发展的瓶颈问题。为此,我们曾经提出了“柔性间隔层”的概念,即在高模量聚二甲基硅氧烷(PDMS)表面通过交替层状组装方法(Layer-by-layer,LbL)引入了聚乙烯亚胺/聚丙烯酸组成的聚电解质多层膜作为柔性间隔层,继而用LbL方法修饰超分子官能团,有效提高了宏观表面的结合强度,实现了PDMS的宏观超分子组装。但是,该聚电解质多层膜的“柔性间隔层”LbL修饰过程繁琐,还要额外引入超分子作用官能团,耗时长,效率低,并且修饰的聚电解质多层膜不稳定,在强酸碱、高盐离子浓度环境下易被破坏,在实际应用中存在挑战。因此,该领域亟需发展新的“柔性间隔层”制备方法,实现刚性材料的高效宏观超分子组装。
为了解决以上问题,提出本发明。
发明内容
本发明提供一种利用水凝胶涂层实现刚性材料宏观超分子组装的方法,利用含超分子官能团的水凝胶涂层组合实现刚性材料宏观超分子组装,所述刚性材料的尺寸在毫米级以上,所述含超分子官能团的水凝胶涂层组合包括第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层,所述第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层包括具备超分子识别与组装功能的超分子相互作用基团,所述超分子相互作用基团包括主客体相互作用基团或者静电相互作用基团,主客体相互作用基团包括主体基团和客体基团;所述静电相互作用基团包括带正电基团和带负电基团;
所述第一含超分子官能团的水凝胶涂层包括主体基团与客体基团两者中一个,或着带正电基团与带负电基团两者中一个;所述第二含超分子官能团的水凝胶涂层包括主体基团与客体基团两者中另一个,或带正电基团与带负电基团两者中另一个;
所述实现刚性材料宏观超分子组装的方法,具体包括以下步骤:
(1)分别将所述的第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层以共价键形式接枝到刚性材料A和刚性材料B表面,得到表面具有第一含超分子官能团的水凝胶涂层的刚性材料A和表面具有第二含超分子官能团的水凝胶涂层的刚性材料B;
(2)将表面具有第一含超分子官能团的水凝胶涂层的刚性材料A和表面具有第二含超分子官能团的水凝胶涂层的刚性材料B组装。
优选地,所述刚性材料A和刚性材料B为宏观刚性材料,所述宏观刚性材料的弹性模量大于2.5MPa,所述刚性材料A和刚性材料B选自金属、无机物或高分子材料,所述金属选自铝,铁,钛,银,金等,无机物选自石英,硅,陶瓷等,高分子材料选自聚己内酯,聚二甲基硅氧烷,聚对苯二甲酸乙二醇酯,聚氨酯,聚甲基丙烯酸甲酯,聚乙烯,聚丙烯,聚苯乙烯等,其中刚性材料A和刚性材料B可以为同种材料也可以为不同种材料。其中,弹性模量越大的宏观刚性材料越难实现组装。
优选地,步骤(1)的方法为:首先在刚性材料A和刚性材料B表面修饰双键官能团;然后使刚性材料A和刚性材料B分别与所述的第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层通过双键官能团发生共聚,得到表面具有第一含超分子官能团的水凝胶涂层的刚性材料A和表面具有第二含超分子官能团的水凝胶涂层的刚性材料B。
优选地,步骤(1)的方法为:首先在刚性材料A和刚性材料B表面修饰可与所述含超分子官能团的水凝胶中的官能团发生反应的反应性基团;然后使刚性材料A和刚性材料B分别与所述第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层反应发生化学反应并实现聚合,得到表面具有第一含超分子官能团的水凝胶涂层的刚性材料A和表面具有第二含超分子官能团的水凝胶涂层的刚性材料B;所述反应性基团一般选择双键,在满足反应条件的情况下可以选自巯基、氨基、羧基等。
优选地,步骤(2)的方法为:将表面具有第一含超分子官能团的水凝胶涂层的刚性材料A与表面具有第二含超分子官能团的水凝胶涂层的刚性材料B,在水环境中使刚性材料A与刚性材料B表面接触,进行组装。优选地,可以采用静态叠加或者摇床震荡的方式使刚性材料A与刚性材料B表面接触,进行组装。例如,将刚性材料A与刚性材料B放置到盛有水的容器中浸没,在160转/分钟的摇床上摇晃3分钟,使刚性材料A与刚性材料B进行组装。
优选地,所述第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层均为三维网络结构。
优选地,所述主体基团选自:环糊精、葫芦脲,所述客体基团选自金刚烷、二茂铁、偶氮苯;所述带正电基团选自:氨基、吡啶基、咪唑盐、季磷盐,所述带负电基团选自:磺酸基、羧酸基。
其中,可以使用6-丙烯酰胺基-β-环糊精,丙烯酸葫芦酯提供带主体基团;可以使用甲基丙烯酸1-金刚烷酯、乙烯基二茂铁、丙烯酰胺基偶氮苯提供客体基团;丙烯酰氧乙基三甲基氯化铵(DAC)、甲基丙烯酸二甲氨乙酯(DMAEMA)、1-乙烯基咪唑(VI)提供带正电基团;可以使用2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、丙烯酸(AA)提供带负电基团。
优选地,所述的含超分子官能团的水凝胶涂层组合的制备方法为:将凝胶单体、带有所述超分子相互作用基团的物质、交联剂、引发剂溶解于溶剂中,然后在光照或热作用下,引发凝胶单体的自由基共聚,得到所述第一含超分子官能团的水凝胶涂层或第二含超分子官能团的水凝胶涂层。其中,聚合条件常用的是光照或热作用,此处也不排除其他可以引发凝胶单体的自由基共聚的方法。
优选地,所述凝胶单体包括丙烯酸酯类单体、丙烯酰胺类单体;所述溶剂为水或有机溶剂,所述凝胶单体在溶剂中的浓度为1M以上;所述引发剂可以是光引发剂或热引发剂,所述光引发剂选自:苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)、(2,4,6-三甲基苯甲酰基)二苯基氧化膦(TPO)、1-羟基环已基苯基酮(Irgacure-184)、2-羟基-4-(2-羟乙氧基)-2-甲基苯丙酮(Irgacure-2959)、2-苄基-2-二甲基氨基-1-(4-吗啉苯基)丁酮(Irgacure-369)、安息香双甲醚(Irgacure-651),所述热引发剂选自:过硫酸铵(APS)、偶氮二异丁腈(AIBN)、过氧化二苯甲酰(BPO)、过硫酸钾(KPS);所述交联剂为化学结构式含有两个或两个以上反应基团的物质,可以选自:N,N-亚甲基双丙烯酰胺,N,N'-(4,4'-亚甲基二苯基),四(3-巯基丙酸)季戊四醇酯,三羟甲基丙烷三(3-巯基丙酸酯);所述超分子相互作用基团包括主客体相互作用基团或者静电相互作用基团,主客体相互作用基团包括主体基团和客体基团,主体基团选自:环糊精、葫芦脲,所述客体基团选自:金刚烷、二茂铁、偶氮苯;所述静电相互作用基团包括带正电基团和带负电基团,所述带正电基团选自:氨基、吡啶基、咪唑盐、季磷盐,所述带负电基团选自:磺酸基、羧酸基。
优选地,所述超分子相互作用基团的添加量为凝胶单体摩尔分数的2%以上,所述交联剂的添加量为凝胶单体摩尔分数的1.5%以上,所述引发剂的添加量为凝胶单体摩尔分数的1%以上。
其中,本发明所述的含超分子官能团的水凝胶涂层组合的制备与将所述的第一或第二含超分子官能团的水凝胶涂层以共价键形式接枝到刚性材料表面的具体步骤为:(a)将凝胶单体、超分子相互作用基团、交联剂、引发剂溶解于溶剂中,得到凝胶预聚体溶液;同时或然后,(b)在刚性材料表面修饰双键官能团或者可与所述含超分子官能团的水凝胶中的官能团发生反应的基团;(c)将凝胶预聚体溶液滴加在修饰后的刚性材料表面(或者直接采用刚性材料通过表面浸渍涂覆凝胶预聚体溶液的方法);(d)然后将表面具有凝胶预聚体溶液的刚性材料置于光照下,引发凝胶单体的共聚,在刚性材料表面的凝胶预聚体溶液发生聚合的过程中凝胶预聚体溶液中的凝胶单体与刚性材料表面双键基团或其他反应基团共聚,凝胶预聚体溶液在刚性材料表面形成含超分子官能团的水凝胶涂层,并与刚性材料实现共价键连接。
其中,步骤(c)中每平方毫米刚性材料上具有0.2微升凝胶预聚体溶液。相对于现有技术,本发明具有以下有益效果:
1、本发明将凝胶单体、超分子相互作用基团、交联剂、引发剂溶解于溶剂中,然后在光照下,引发凝胶单体的自由基共聚,得到含超分子官能团的水凝胶,所述含超分子官能团的水凝胶为三维网络结构,且具备超分子识别与组装功能。
2、本发明主要通过在刚性材料表面以共价键连接具有超分子识别与组装功能的含超分子官能团的水凝胶涂层,借助含超分子官能团的水凝胶涂层之间的超分子相互作用,实现刚性材料的宏观超分子组装。通过这种方法,可以克服宏观超分子组装过程中由于刚性构筑基元界面形变能力差,使得超分子官能团难以发生相互作用不能组装的问题,实现刚性构筑基元的宏观超分子组装。
3、本发明发展了一种新型的柔性间隔层,将宏观超分子组装从低模量的材料构筑基元体系扩展到了高模量材料构筑基元体系,实现了无机物、塑料、金属等多种刚性构筑基元的宏观超分子组装,该方法具有材料的普适性,材料选择的多样性将为宏观超分子组装的体相材料提供更多的性质与功能。同时,该修饰方法简便、耗时短、效率高,材料表面修饰得到的含超分子官能团的水凝胶涂层化学性质稳定。
4、本发明方法为通过宏观超分子组装自下而上的制备多材质的三维有序结构提供了新思路。
具体实施方式
以下结合实例和附图对本发明做进一步的说明。本领域技术人员应当理解,下面所具体描述的内容是说明性的而非限制性的,不应以此限制本发明的保护范围。
附图说明
图1实施例1-3中刚性构筑基元组装的具体操作步骤参考图;
图2实施例2中刚性基元E1表面的凝胶涂层截面的扫描电镜图,其中图2a为刚性基元E1表面的凝胶涂层截面的扫描电镜图,图2b为刚性基元E2表面的凝胶涂层截面的扫描电镜图;
图3实施例1中组装体F提出水面的图像;
图4实施例2中组装体F提出水面的图像;
图5实施例3中组装体F提出水面的图像;
其中,图3-图5中为了区分含有6-丙烯酰胺基-β-环糊精主体凝胶预聚体溶液A和含有1-金刚烷基甲基丙烯酰胺的客体凝胶预聚体溶液B,分别对两者进行了染色处理,故图3-图5中组装体F中两个刚性基元C的颜色深浅有些许差别。
实施例1
本实施例为一种实现刚性构筑基元组装的方法,刚性构筑基元C选自金属铝(3×3×3mm),其包括以下步骤(具体操作步骤参考图1,其中E2’标志代表主体基团环糊精基团,E1’代表客体基团金刚烷基团):
步骤1,分别配制含有6-丙烯酰胺基-β-环糊精主体凝胶预聚体溶液A和含有1-金刚烷基甲基丙烯酰胺的客体凝胶预聚体溶液B。将一定量的丙烯酰胺、N,N-亚甲基双丙烯酰胺(MBA)、苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)、6-丙烯酰胺基-β-环糊精溶于一定量的二甲基亚砜(DMSO),即为凝胶预聚体溶液A。将一定量的丙烯酰胺、N,N-亚甲基双丙烯酰胺(MBA)、苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)、1-金刚烷基甲基丙烯酰胺溶于一定量的去离子水,即为凝胶预聚体溶液B。
所述主客体凝胶预聚体溶液中丙烯酰胺为凝胶单体、苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)为光引发剂、N,N-亚甲基双丙烯酰胺(MBA)为交联剂、环糊精或金刚烷为实现超分子相互作用的超分子官能团。
步骤2,将刚性构筑基元C表面超声清洗、氧等离子体处理后,浸泡于一定浓度的硅烷化试剂3-(甲基丙烯酰氧)丙基三甲氧基硅烷(TMSPMA)溶液后烘干,得到表面双键官能团修饰的基元D。
步骤3,将步骤2所述的刚性构筑基元D分别浸润于凝胶预聚体溶液A或凝胶预聚体溶液B,在去除多余凝胶预聚体溶液后,进行约5分钟紫外光照聚合,分别得到表面修饰有超分子识别与组装功能凝胶涂层的刚性构筑基元E1(凝胶预聚体溶液A)和E2(凝胶预聚体溶液B)。
步骤4,将刚性构筑基元E1与E2充分浸泡于去离子水中24小时,以除去未聚合的小分子物质并置换E1中的有机溶剂。
步骤5,将刚性构筑基元E1与E1、刚性构筑基元E2与E2、刚性构筑基元E1与E2等,分别放入盛有水的容器中并浸没,在160转/分钟的摇床上进行摇晃组装,3分钟后观察组装情况并尝试用镊子提出水面。结果只有E1和E2能实现组装,形成结构稳定的组装体F,并可用镊子将组装体F提拉出水面。
本实施例刚性构筑基元E1和刚性构筑基元E2形成组装体后,将组装体F拎出水面的图像如附图3所示。
实施例2
本实施例为一种实现刚性构筑基元组装的方法,刚性构筑基元C选自无机物石英(尺寸为3×3×3mm),其包括以下步骤:
步骤1,分别配制含有6-丙烯酰胺基-β-环糊精主体凝胶预聚体溶液A和含有1-金刚烷基甲基丙烯酰胺的客体凝胶预聚体溶液B。将一定量的丙烯酰胺、N,N-亚甲基双丙烯酰胺(MBA)、苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)、6-丙烯酰胺基-β-环糊精溶于一定量的二甲基亚砜(DMSO),即为凝胶预聚体溶液A。将一定量的丙烯酰胺、N,N-亚甲基双丙烯酰胺(MBA)、苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)、1-金刚烷基甲基丙烯酰胺溶于一定量的去离子水,即为凝胶预聚体溶液B。
所述主客体凝胶预聚体溶液中丙烯酰胺为凝胶单体、苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)为光引发剂、N,N-亚甲基双丙烯酰胺(MBA)为交联剂、环糊精或金刚烷为实现超分子相互作用的超分子官能团。
步骤2,将刚性构筑基元C表面超声清洗、氧等离子体处理后,浸泡于一定浓度的硅烷化试剂3-(甲基丙烯酰氧)丙基三甲氧基硅烷(TMSPMA)溶液后烘干,得到表面双键官能团修饰的基元D。
步骤3,将步骤2所述的刚性构筑基元D分别浸润于凝胶预聚体溶液A或凝胶预聚体溶液B,在去除多余凝胶预聚体溶液后,采用波长为405nm的紫外光对基元表面进行照射,约5分钟后聚合完成,分别得到表面修饰有超分子识别与组装功能凝胶涂层的刚性构筑基元E1(凝胶预聚体溶液A)和E2(凝胶预聚体溶液B)。
步骤4,将刚性构筑基元E1与E2充分浸泡于去离子水中24小时,以除去未聚合的小分子物质并置换E1中的有机溶剂。
步骤5,将刚性构筑基元E1与E1、刚性构筑基元E2与E2、刚性构筑基元E1与E2等,分别放入盛有水的容器中并浸没,在160转/分钟的摇床上进行摇晃组装,3分钟后观察组装情况并尝试用镊子提出水面。结果只有E1和E2能实现组装,形成结构稳定的组装体F,并可用镊子将组装体F提拉出水面。
本实施例刚性构筑基元E1和刚性构筑基元E2形成组装体后,将组装体F提出水面的图像如附图4所示。
实施例3
本实施例为一种实现刚性构筑基元组装的方法,刚性构筑基元C选自高分子材料聚己内酯(尺寸为3×3×3mm),其包括以下步骤:
步骤1,分别配制含有6-丙烯酰胺基-β-环糊精主体凝胶预聚体溶液A和含有1-金刚烷基甲基丙烯酰胺的客体凝胶预聚体溶液B。将一定量的丙烯酰胺、N,N-亚甲基双丙烯酰胺(MBA)、苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)、6-丙烯酰胺基-β-环糊精溶于一定量的二甲基亚砜(DMSO),即为凝胶预聚体溶液A。将一定量的丙烯酰胺、N,N-亚甲基双丙烯酰胺(MBA)、苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)、1-金刚烷基甲基丙烯酰胺溶于一定量的去离子水,即为凝胶预聚体溶液B。
所述主客体凝胶预聚体溶液中丙烯酰胺为凝胶单体、苯基-2,4,6-三甲基苯甲酰基膦酸锂(LAP)为光引发剂、N,N-亚甲基双丙烯酰胺(MBA)为交联剂、环糊精或金刚烷为实现超分子相互作用的超分子官能团。
步骤2,将刚性构筑基元C表面超声清洗、氧等离子体处理后,浸泡于一定浓度的硅烷化试剂3-(甲基丙烯酰氧)丙基三甲氧基硅烷(TMSPMA)溶液后烘干,得到表面双键官能团修饰的基元D。
步骤3,将步骤2所述的刚性构筑基元D分别浸润于凝胶预聚体溶液A或凝胶预聚体溶液B,在去除多余凝胶预聚体溶液后,采用波长为405nm的紫外光对基元表面进行照射,约5分钟后聚合完成,分别得到表面修饰有超分子识别与组装功能凝胶涂层的刚性构筑基元E1(凝胶预聚体溶液A)和E2(凝胶预聚体溶液B)。
步骤4,将刚性构筑基元E1与E2充分浸泡于去离子水中24小时,以除去未聚合的小分子物质并置换E1中的有机溶剂。
步骤5,将刚性构筑基元E1与E1、刚性构筑基元E2与E2、刚性构筑基元E1与E2等,分别放入盛有水的容器中并浸没,在160转/分钟的摇床上进行摇晃组装,3分钟后观察组装情况并尝试用镊子拎出水面。结果只有E1和E2能实现组装,形成结构稳定的组装体F,并可用镊子将组装体F提拉出水面。
本实施例刚性构筑基元E1和刚性构筑基元E2形成组装体后,将组装体F拎出水面的图像如附图5所示。
显然,本发明的上述实施例仅是为清楚地说明本发明所作的举例,而并非是对本发明的实施方式的限定,对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动,这里无法对所有的实施方式予以穷举,凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。
Claims (10)
1.一种利用水凝胶涂层实现刚性材料宏观超分子组装的方法,其特征在于,利用含超分子官能团的水凝胶涂层组合实现刚性材料宏观超分子组装,所述刚性材料的尺寸在毫米级以上,所述含超分子官能团的水凝胶涂层组合包括第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层,所述第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层包括具备超分子识别与组装功能的超分子相互作用基团,所述超分子相互作用基团包括主客体相互作用基团或者静电相互作用基团,主客体相互作用基团包括主体基团和客体基团;所述静电相互作用基团包括带正电基团和带负电基团;
所述第一含超分子官能团的水凝胶涂层包括主体基团与客体基团两者中一个,或者带正电基团与带负电基团两者中一个;所述第二含超分子官能团的水凝胶涂层包括主体基团与客体基团两者中另一个,或带正电基团与带负电基团两者中另一个;
具体实现刚性材料宏观超分子组装的方法,包括以下步骤:
(1)分别将所述的第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层以共价键形式接枝到刚性材料A和刚性材料B表面,得到表面具有第一含超分子官能团的水凝胶涂层的刚性材料A和表面具有第二含超分子官能团的水凝胶涂层的刚性材料B;
(2)将表面具有第一含超分子官能团的水凝胶涂层的刚性材料A和表面具有第二含超分子官能团的水凝胶涂层的刚性材料B组装。
2.根据权利要求1所述实现刚性材料宏观超分子组装的方法,其特征在于,所述刚性材料A和刚性材料B为宏观刚性材料,所述宏观刚性材料的弹性模量大于2.5MPa,所述刚性材料A和刚性材料B分别或同时选自金属、无机物或高分子材料。
3.根据权利要求1所述实现刚性材料宏观超分子组装的方法,其特征在于,步骤(1)的方法为:首先在刚性材料A和刚性材料B表面修饰双键官能团;然后使刚性材料A和刚性材料B分别与所述的第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层通过双键官能团发生共聚,得到表面具有第一含超分子官能团的水凝胶涂层的刚性材料A和表面具有第二含超分子官能团的水凝胶涂层的刚性材料B。
4.根据权利要求1所述实现刚性材料宏观超分子组装的方法,其特征在于,步骤(1)的方法为:首先在刚性材料A和刚性材料B表面修饰可与所述含超分子官能团的水凝胶中的官能团发生反应的反应性基团;然后使刚性材料A和刚性材料B分别与所述第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层反应发生化学反应,并实现凝胶预聚溶液的聚合,得到表面具有第一含超分子官能团的水凝胶涂层的刚性材料A和表面具有第二含超分子官能团的水凝胶涂层的刚性材料B;所述反应性基团选自巯基、氨基、羧基。
5.根据权利要求1所述实现刚性材料宏观超分子组装的方法,其特征在于,步骤(2)的方法为:将表面具有第一含超分子官能团的水凝胶涂层的刚性材料A与表面具有第二含超分子官能团的水凝胶涂层的刚性材料B,在水环境中使刚性材料A与刚性材料B表面接触,进行组装。
6.根据权利要求1所述实现刚性材料宏观超分子组装的方法,其特征在于,所述第一含超分子官能团的水凝胶涂层和第二含超分子官能团的水凝胶涂层均为三维网络结构。
7.根据权利要求1所述实现刚性材料宏观超分子组装的方法,其特征在于,所述主体基团选自:环糊精、葫芦脲,所述客体基团选自金刚烷、二茂铁、偶氮苯;所述带正电基团选自:氨基、吡啶基、咪唑盐、季磷盐,所述带负电基团选自:磺酸基、羧酸基。
8.根据权利要求1所述实现刚性材料宏观超分子组装的方法,其特征在于,所述含超分子官能团的水凝胶涂层组合的制备方法为:将凝胶单体、带有所述超分子相互作用基团的物质、交联剂、引发剂溶解于溶剂中,然后在光照或热作用下,引发凝胶单体的自由基共聚,得到所述第一含超分子官能团的水凝胶涂层或第二含超分子官能团的水凝胶涂层。
9.根据权利要求8所述实现刚性材料宏观超分子组装的方法,其特征在于,所述凝胶单体包括丙烯酸酯类单体、丙烯酰胺类单体;所述溶剂为水或有机溶剂,所述凝胶单体在溶剂中的质量分数在4%以上;所述引发剂可以是光引发剂或热引发剂,所述光引发剂选自:苯基-2,4,6-三甲基苯甲酰基膦酸锂、(2,4,6-三甲基苯甲酰基)二苯基氧化膦、1-羟基环已基苯基酮、2-羟基-4-(2-羟乙氧基)-2-甲基苯丙酮、2-苄基-2-二甲基氨基-1-(4-吗啉苯基)丁酮、安息香双甲醚,所述热引发剂选自:过硫酸铵、偶氮二异丁腈、过氧化二苯甲酰、过硫酸钾;所述交联剂选自:N,N-亚甲基双丙烯酰胺,N,N'-(4,4'-亚甲基二苯基),四(3-巯基丙酸)季戊四醇酯,三羟甲基丙烷三(3-巯基丙酸酯);所述超分子相互作用基团包括主客体相互作用基团或者静电相互作用基团,主客体相互作用基团包括主体基团和客体基团,主体基团选自:环糊精、葫芦脲,所述客体基团选自:金刚烷、二茂铁、偶氮苯;所述静电相互作用基团包括带正电基团和带负电基团,所述带正电基团选自:氨基、吡啶基、咪唑盐、季磷盐,所述带负电基团选自:磺酸基、羧酸基。
10.根据权利要求8所述实现刚性材料宏观超分子组装的方法,其特征在于,所述超分子相互作用基团的添加量为凝胶单体摩尔分数的0.75%以上,所述交联剂的添加量为凝胶溶液质量分数的0.05%以上,所述引发剂的添加量为凝胶单体摩尔溶液质量分数的0.05%以上。
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CN114957550A (zh) * | 2022-06-14 | 2022-08-30 | 中国石油大学(华东) | 一种深部调剖再粘接超分子凝胶颗粒及其制备方法 |
CN114957550B (zh) * | 2022-06-14 | 2023-08-18 | 中国石油大学(华东) | 一种深部调剖再粘接超分子凝胶颗粒及其制备方法 |
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