CN108373527B - 一种超支化聚酯基聚氨酯医用胶黏剂的制备方法及应用 - Google Patents

一种超支化聚酯基聚氨酯医用胶黏剂的制备方法及应用 Download PDF

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CN108373527B
CN108373527B CN201810163466.1A CN201810163466A CN108373527B CN 108373527 B CN108373527 B CN 108373527B CN 201810163466 A CN201810163466 A CN 201810163466A CN 108373527 B CN108373527 B CN 108373527B
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施雪涛
宣承楷
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Guangzhou Xunhe Medical Technology Co.,Ltd.
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Abstract

本发明公开了一种超支化聚酯基聚氨酯医用胶黏剂的制备方法及应用,包括步骤:1)将端羟基超支化聚酯与丙烯酰氯反应,通过调控比例获得一系列双键修饰的前驱物1,其中,端羟基超支化聚酯的‑OH:丙烯酰氯摩尔比=1:2~4;2)将二异氰酸酯与聚乙二醇按摩尔比为2:1投料反应,获得前驱物2;3)将前驱物1、2按前驱物1的‑OH官能团数:前驱物2的‑NCO官能团数=1:1.1~2.0的比例反应,得到一种含双键的超支化聚酯基聚氨酯医用胶黏剂;4)将超支化聚酯基聚氨酯医用胶黏剂与0.1~0.5wt%光引发剂i2595混合均匀,避光保存待用。本发明制得的医用胶黏剂无毒无害、生物相容性良好、对人体组织具有强化学粘附力。

Description

一种超支化聚酯基聚氨酯医用胶黏剂的制备方法及应用
技术领域
本发明涉及医用胶水的技术领域,尤其是指一种超支化聚酯基聚氨酯医用胶黏剂的制备方法及应用。
背景技术
现有人体组织创伤的修复手段:手术线缝合、医用胶带和商用生物胶水。手术线缝合需要专业医生操作,使用时造成病人疼痛,难以用于微创伤的修复,易造成感染。医用胶带粘附强度低,对复杂创面适应性较差,难以完全覆盖创面从而造成后续细菌侵入感染。商用生物胶水主要有纤维蛋白胶水、α-氰基丙烯酸酯等,纤维蛋白胶水生物安全性好,但粘合力一般且价格昂贵;α-氰基丙烯酸酯虽然固化速度快、强度高,但具有一定生物毒性,而且会阻止伤口愈合,模量大呈脆性,难以与组织适配。
发明内容
本发明的目的在于克服现有技术的缺点与不足,提出了一种生物安全性好、模量可调节从而与不同组织适配性好、粘合力高的超支化聚酯基聚氨酯医用胶黏剂的制备方法及应用。
为实现上述目的,本发明所提供的技术方案如下:
一种超支化聚酯基聚氨酯医用胶黏剂的制备方法,包括以下步骤:
1)将端羟基超支化聚酯与丙烯酰氯反应,通过调控比例获得一系列双键修饰的前驱物1,其中,端羟基超支化聚酯的-OH:丙烯酰氯摩尔比=2:1或3:1或3:2;
2)将二异氰酸酯与聚乙二醇(PEG)按摩尔比为2:1投料反应,获得前驱物2;
3)将前驱物1、2按前驱物1的-OH官能团数:前驱物2的-NCO官能团数=1:1.1~2.0的比例反应,得到一种含双键的超支化聚酯基聚氨酯医用胶黏剂;
4)将步骤3)得到的超支化聚酯基聚氨酯医用胶黏剂与0.1~0.5wt%光引发剂i2595混合均匀,避光保存待用;至此,即可完成所需的超支化聚酯基聚氨酯医用胶黏剂的制备待用。
视最终目的而定,待用的超支化聚酯基聚氨酯医用胶黏剂可根据需要添加抗氧化剂、干燥剂、催化剂中的一种或几种组合。
在步骤1)中,所述端羟基超支化聚酯为H101、H201、H301中的一种或几种组成。
在步骤2)中,所述二异氰酸酯为赖氨酸二异氰酸酯(LDI)、甲苯二异氰酸酯(TDI)、二苯基甲烷二异氰酸酯(MDI)、六甲基二异氰酸酯(HDI)中的一种或几种组成。
在步骤2)中,所述聚乙二醇(PEG)的分子量为200~3000Da。
本发明所得到的模量可调节的超支化聚酯基聚氨酯医用胶黏剂,可用于人体软、硬组织的修复。使用时,先将创面做简单消毒处理,然后将待用的超支化聚酯基聚氨酯医用胶黏剂涂覆在伤口,而后超支化聚酯基聚氨酯医用胶黏剂中的异氰酸酯基将与人体组织中的活性氢化合物发生交联反应,形成共价键强粘附,随后在UV光条件下使胶水快固化,使创面口闭合,从而达到修复效果。
本发明与现有技术相比,具有如下优点与有益效果:
通过本发明方法能够得到一种无毒无害,生物相容性良好,实施舒适便利,对人体组织具有强化学粘附力,模量可调节幅度大,从而适用于软、硬组织修复的生物胶水,能有效实现缺损组织的快速修复,具有实际推广价值。
具体实施方式
下面结合具体实施例对本发明作进一步说明。
实施例1
第一步,在通N2、搅拌环境下将10gH101(20mmol,120mmol的-OH)加入一圆底烧瓶中,然后往其中缓慢滴加3.17ml(40mmol)丙烯酰氯及等摩尔量的三乙胺,反应24h以上,分离提纯得前驱物1。第二步,在通N2、搅拌环境下将4.52gLDI(20mmol)加入一圆底烧瓶中,然后往其中缓慢滴加2gPEG200(10mmol),60℃下反应>12h,得到前驱物2。第三步,在通N2、搅拌环境下将6.52g(10mmol,20mmol的-NCO)前驱物2加入一圆底烧瓶中,然后缓慢往其中滴加1.52g(2.5mmol,10mmol的-OH)前驱物1,得到一种含双键的超支化聚酯基聚氨酯医用胶黏剂。第四步,将第三步得到的医用胶黏剂与0.1wt%光引发剂i2595混合均匀,避光保存待用。使用时,将医用胶黏剂涂覆在损伤组织上,施加压力约1分钟,然后UV光照2分钟固化,可获得很好的粘合效果。
实施例2
第一步,在通N2、搅拌环境下将12gH201(20mmol,120mmol的-OH)加入一圆底烧瓶中,然后往其中缓慢滴加6.34ml(80mmol)丙烯酰氯及等摩尔量的三乙胺,反应24h以上,分离提纯得前驱物1。第二步,在通N2、搅拌环境下将4.52gLDI(20mmol)加入一圆底烧瓶中,然后往其中缓慢滴加2gPEG200(10mmol),60℃下反应>12h,得到前驱物2。第三步,在通N2、搅拌环境下将3.586g(5.5mmol,11mmol的-NCO)前驱物2加入一圆底烧瓶中,然后缓慢往其中滴加1.52g(2.5mmol,10mmol的-OH)前驱物1,得到一种含双键的超支化聚酯基聚氨酯医用胶黏剂。第四步,将第三步得到的医用胶黏剂与0.5wt%光引发剂i2595混合均匀,避光保存待用。使用时,将医用胶黏剂涂覆在损伤组织上,施加压力约1分钟,然后UV光照2分钟固化,可获得很好的粘合效果。
实施例3
第一步,在通N2、搅拌环境下将18.4gH301(20mmol,120mmol的-OH)加入一圆底烧瓶中,然后往其中缓慢滴加4.755ml(60mmol)丙烯酰氯及等摩尔量的三乙胺,反应24h以上,分离提纯得前驱物1。第二步,在通N2、搅拌环境下将4.52gLDI(20mmol)加入一圆底烧瓶中,然后往其中缓慢滴加2gPEG200(10mmol),60℃下反应>12h,得到前驱物2。第三步,在通N2、搅拌环境下将4.89g(7.5mmol,15mmol的-NCO)前驱物2加入一圆底烧瓶中,然后缓慢往其中滴加1.52g(2.5mmol,10mmol的-OH)前驱物1,得到一种含双键的超支化聚酯基聚氨酯医用胶黏剂。第四步,将第三步得到的医用胶黏剂与0.2wt%光引发剂i2595混合均匀,避光保存待用。使用时,将医用胶黏剂涂覆在损伤组织上,施加压力约1分钟,然后UV光照2分钟固化,可获得很好的粘合效果。
实施例4
第一步,在通N2、搅拌环境下将10gH101(20mmol,120mmol的-OH)加入一圆底烧瓶中,然后往其中缓慢滴加3.17ml(40mmol)丙烯酰氯及等摩尔量的三乙胺,反应24h以上,分离提纯得前驱物1。第二步,在通N2、搅拌环境下将4.52gLDI(20mmol)加入一圆底烧瓶中,然后往其中缓慢滴加30gPEG3000(10mmol),60℃下反应>12h,得到前驱物2。第三步,在通N2、搅拌环境下将34.52g(10mmol,20mmol的-NCO)前驱物2加入一圆底烧瓶中,然后缓慢往其中滴加1.52g(2.5mmol,10mmol的-OH)前驱物1,得到一种含双键的超支化聚酯基聚氨酯医用胶黏剂。第四步,将第三步得到的医用胶黏剂与0.4wt%光引发剂i2595混合均匀,避光保存待用。使用时,将医用胶黏剂涂覆在损伤组织上,施加压力约1分钟,然后UV光照2分钟固化,可获得很好的粘合效果。
以上所述实施例只为本发明之较佳实施例,并非以此限制本发明的实施范围,故凡依本发明之形状、原理所作的变化,均应涵盖在本发明的保护范围内。

Claims (5)

1.一种超支化聚酯基聚氨酯医用胶黏剂的制备方法,其特征在于,包括以下步骤:
1)将端羟基超支化聚酯与丙烯酰氯反应,通过调控比例获得一系列双键修饰的前驱物1,其中,端羟基超支化聚酯的-OH:丙烯酰氯摩尔比=2:1或3:1或3:2;
2)将二异氰酸酯与聚乙二醇按摩尔比为2:1投料反应,获得前驱物2;
3)将前驱物1、2按前驱物1的-OH官能团数:前驱物2的-NCO官能团数=1:1.1~2.0的比例反应,得到一种含双键的超支化聚酯基聚氨酯医用胶黏剂;
4)将步骤3)得到的含双键的超支化聚酯基聚氨酯医用胶黏剂与0.1~0.5wt%光引发剂i2595混合均匀,避光保存待用;至此,即可完成所需的超支化聚酯基聚氨酯医用胶黏剂的制备待用。
2.根据权利要求1所述的一种超支化聚酯基聚氨酯医用胶黏剂的制备方法,其特征在于:待用的超支化聚酯基聚氨酯医用胶黏剂能够根据需要添加抗氧化剂、干燥剂、催化剂中的一种或几种组合。
3.根据权利要求1所述的一种超支化聚酯基聚氨酯医用胶黏剂的制备方法,其特征在于:在步骤1)中,所述端羟基超支化聚酯为H101、H201、H301中的一种或几种组成。
4.根据权利要求1所述的一种超支化聚酯基聚氨酯医用胶黏剂的制备方法,其特征在于:在步骤2)中,所述二异氰酸酯为赖氨酸二异氰酸酯、甲苯二异氰酸酯、二苯基甲烷二异氰酸酯、六亚甲基二异氰酸酯中的一种或几种组成。
5.根据权利要求1所述的一种超支化聚酯基聚氨酯医用胶黏剂的制备方法,其特征在于:在步骤2)中,所述聚乙二醇的分子量为200~3000Da。
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