CN1257926C - 生物降解荧光聚酸酐制备方法 - Google Patents
生物降解荧光聚酸酐制备方法 Download PDFInfo
- Publication number
- CN1257926C CN1257926C CN 200410025773 CN200410025773A CN1257926C CN 1257926 C CN1257926 C CN 1257926C CN 200410025773 CN200410025773 CN 200410025773 CN 200410025773 A CN200410025773 A CN 200410025773A CN 1257926 C CN1257926 C CN 1257926C
- Authority
- CN
- China
- Prior art keywords
- acid
- anhydride
- poly
- fluorescent
- substituted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 150000008064 anhydrides Chemical class 0.000 title abstract 6
- 238000000034 method Methods 0.000 title description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- IRXBNHGNHKNOJI-UHFFFAOYSA-N butanedioyl dichloride Chemical compound ClC(=O)CCC(Cl)=O IRXBNHGNHKNOJI-UHFFFAOYSA-N 0.000 claims abstract description 9
- -1 rods Substances 0.000 claims abstract description 9
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 20
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 18
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 15
- 230000015556 catabolic process Effects 0.000 claims description 15
- 238000006731 degradation reaction Methods 0.000 claims description 15
- 229920002732 Polyanhydride Polymers 0.000 claims description 9
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 9
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 claims description 7
- 150000008065 acid anhydrides Chemical class 0.000 claims description 7
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 claims description 6
- JMSVCTWVEWCHDZ-UHFFFAOYSA-N syringic acid Chemical compound COC1=CC(C(O)=O)=CC(OC)=C1O JMSVCTWVEWCHDZ-UHFFFAOYSA-N 0.000 claims description 6
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 5
- 150000007520 diprotic acids Chemical class 0.000 claims description 4
- YQUVCSBJEUQKSH-UHFFFAOYSA-N protochatechuic acid Natural products OC(=O)C1=CC=C(O)C(O)=C1 YQUVCSBJEUQKSH-UHFFFAOYSA-N 0.000 claims description 4
- WKOLLVMJNQIZCI-UHFFFAOYSA-N vanillic acid Chemical compound COC1=CC(C(O)=O)=CC=C1O WKOLLVMJNQIZCI-UHFFFAOYSA-N 0.000 claims description 4
- TUUBOHWZSQXCSW-UHFFFAOYSA-N vanillic acid Natural products COC1=CC(O)=CC(C(O)=O)=C1 TUUBOHWZSQXCSW-UHFFFAOYSA-N 0.000 claims description 4
- IOHPVZBSOKLVMN-UHFFFAOYSA-N 2-(2-phenylethyl)benzoic acid Chemical compound OC(=O)C1=CC=CC=C1CCC1=CC=CC=C1 IOHPVZBSOKLVMN-UHFFFAOYSA-N 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- YIBXWXOYFGZLRU-UHFFFAOYSA-N syringic aldehyde Natural products CC12CCC(C3(CCC(=O)C(C)(C)C3CC=3)C)C=3C1(C)CCC2C1COC(C)(C)C(O)C(O)C1 YIBXWXOYFGZLRU-UHFFFAOYSA-N 0.000 claims description 3
- CUBCNYWQJHBXIY-UHFFFAOYSA-N benzoic acid;2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC=C1.OC(=O)C1=CC=CC=C1O CUBCNYWQJHBXIY-UHFFFAOYSA-N 0.000 claims description 2
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims 2
- RWZYAGGXGHYGMB-UHFFFAOYSA-N anthranilic acid Chemical compound NC1=CC=CC=C1C(O)=O RWZYAGGXGHYGMB-UHFFFAOYSA-N 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims 1
- WUBBRNOQWQTFEX-UHFFFAOYSA-N 4-aminosalicylic acid Chemical compound NC1=CC=C(C(O)=O)C(O)=C1 WUBBRNOQWQTFEX-UHFFFAOYSA-N 0.000 claims 1
- 229960004909 aminosalicylic acid Drugs 0.000 claims 1
- KBOPZPXVLCULAV-UHFFFAOYSA-N mesalamine Chemical compound NC1=CC=C(O)C(C(O)=O)=C1 KBOPZPXVLCULAV-UHFFFAOYSA-N 0.000 claims 1
- 229960004963 mesalazine Drugs 0.000 claims 1
- PSHKMPUSSFXUIA-UHFFFAOYSA-N n,n-dimethylpyridin-2-amine Chemical compound CN(C)C1=CC=CC=N1 PSHKMPUSSFXUIA-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 14
- 239000000126 substance Substances 0.000 abstract description 14
- 239000004005 microsphere Substances 0.000 abstract description 4
- 239000000178 monomer Substances 0.000 abstract description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical class OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 abstract description 3
- 125000003118 aryl group Chemical group 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- NBOMNTLFRHMDEZ-UHFFFAOYSA-N thiosalicylic acid Chemical class OC(=O)C1=CC=CC=C1S NBOMNTLFRHMDEZ-UHFFFAOYSA-N 0.000 abstract description 2
- 229960004050 aminobenzoic acid Drugs 0.000 abstract 1
- 150000005415 aminobenzoic acids Chemical class 0.000 abstract 1
- 230000000593 degrading effect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000010189 synthetic method Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 16
- 238000001556 precipitation Methods 0.000 description 9
- 238000001291 vacuum drying Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000011541 reaction mixture Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 7
- 239000003814 drug Substances 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 230000005284 excitation Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 5
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 4
- 238000002189 fluorescence spectrum Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 229920001606 poly(lactic acid-co-glycolic acid) Polymers 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- DLGOEMSEDOSKAD-UHFFFAOYSA-N Carmustine Chemical compound ClCCNC(=O)N(N=O)CCCl DLGOEMSEDOSKAD-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 230000008499 blood brain barrier function Effects 0.000 description 1
- 210000001218 blood-brain barrier Anatomy 0.000 description 1
- 229960005243 carmustine Drugs 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003937 drug carrier Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 238000000799 fluorescence microscopy Methods 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 150000003334 secondary amides Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 229940103494 thiosalicylic acid Drugs 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Landscapes
- Polyamides (AREA)
Abstract
本发明公开了一种生物降解荧光聚酸酐制备方法。聚酸酐的化学结构为见右式,其中Ar为取代或未取代的芳环,X为NH、O或S。合成方法为将取代或未取代的羟基苯甲酸、取代或未取代的氨基苯甲酸或取代或未取代的巯基苯甲酸与丁二酰氯或其衍生物反应得到对应的二酸单体,二酸单体经预聚得到预聚物,预聚物进一步经熔融缩聚得到对应的荧光聚酸酐。本发明的优点:1)合成路线简单,原料价格低廉;2)发光性能优异;3)降解速度从几天到几年范围任意可调;4)机械性能优良,能加工成各种形状、结构的制剂,如薄膜、棒材、微球、纳米颗粒与多孔支架。
Description
技术领域
本发明涉及一种生物降解荧光聚酸酐制备方法。
背景技术
在过去二十多年中,生物降解高分子在生物医学工程领域受到广泛重视,一些聚合物已在临床中得到应用,例如聚(丙交酯-共-乙交酯)(PLGA)被美国食品与药物管理委员会(FDA)批准用作可吸收缝线与药物控制释放载体,聚(双-对(羧基苯氧基丙基)-共-癸二酸酐)(P(CPP-SA))也因为其优良的生物降解与生物相容性得到FDA批准,作为卡氮芥的载体用于治疗神经胶质瘤。与聚(丙交酯-共-乙交酯)相比,聚酸酐具有降解速度调节范围广、表面降解等特点。同时,通过对聚酸酐的结构进行设计,还可能获得满足不同使用要求的载体材料。例如生物降解微球可以用作药物载体,携带药物穿过胃肠道或血-脑屏障,大大提高药物的生物利用度,在药物控释领域具有非常广阔的应用前景。对微球的体内吸收的跟踪,通常需对微球进行荧光探针标记,用荧光显微技术进行测定。而荧光标记物的引入一方面会导致微球表面性质的改变,另一方面在测定过程中包埋的荧光标记物会从微球中释放出来,因而其应用具有很大的局限性,这制约了生物降解微球作为药物控释载体的发展。如果能获得一种具有较强内在荧光特性的生物降解聚合物,将其制备成高分子微球,可以直接利用材料本身的荧光性质,进行体内跟踪。另外,随着荧光技术在生物医学领域的广泛使用,这类材料也将在越来越多的方面得到应用。在我们前期研究工作中,发现了一类聚酸酐,在紫外或可见光激发下能发出较强荧光。聚酸酐的化学结构设计如下图所示,其中R可以是H或其它取代基,取代位置可以是与羰基邻、间或对位;XC(O)可以是酰胺或酯基,其取代位置可以是与羰基邻、间或对位。所得聚合物具有以下优点:1)可生物降解,降解速度可简单地通过与其它二酸单体共聚进行调节;2)聚合物膜与溶液具有较强的内在荧光性能;3)聚合物的最大荧光发射波长依赖于激发光波长,通过双波长光激发,可以避免体内其它荧光物质的干扰作用。λex为356nm时,λem为429nm;λex为470nm时,λem为480/520nm;4)聚合物的荧光强度与其数均分子量基本成线性关系,可以用荧光方法跟踪测定聚合物的降解;5)与其它非荧光二酸单体共聚,所得聚酸酐共聚物仍具有内在荧光特性。但上述聚酸酐材料存在机械性能低、降解速度调节范围不够长等缺点。
发明内容
本发明的目的是提供一种生物降解荧光聚酸酐制备方法。
生物降解荧光聚酸酐的制备方法:0.05~1.0mol苯甲酸衍生物与0.05~1.0mol丁二酰氯或其衍生物,在0.05~1.0mol有机胺催化下,于20~200ml有机溶剂中反应1~24h,得到对应的二元酸;1~100g二元酸经10~1000m1乙酸酐回流1~3h制备得到预聚物;1~50g预聚物在160~180℃、0.01~2mmHg熔融缩聚1~4h得到聚酸酐。
本发明的优点:
1)合成路线简单,原料价格低廉;
2)发光性能优异;
3)降解速度从几天到几年范围任意可调;
4)机械性能优良,能加工成各种形状、结构的制剂,如薄膜、棒材、微球、纳米颗粒与多孔支架。
附图说明
图1是聚(对羧基苯基琥珀酸双酯共-癸二酸酐)(P(bis-CPS:SA))在波长为327nm紫外光激发下的荧光光谱图;
图2是聚(对羧基苯基琥珀酸双酯共-癸二酸酐)(P(bis-CPS:SA))在波长为462nm光激发下荧光光谱图。
具体实施方式
生物降解荧光聚酸酐的分子式为:
其中X是O、NH或S;R是H或其它取代基,取代位置是与羰基邻、间或对位,芳环上取代基数目是0~4个;XC(O)是仲酰胺、酯基或硫酯键,其取代位置是与羰基邻、间或对位,脂链上取代基数目是0~4个
实施例1
对羟基苯甲酸(0.08mol)溶解在70ml THF中,加入吡啶(0.096mol),丁二酰氯(0.088mol)溶于12ml THF中,用恒压漏斗慢慢滴加到对羟基苯甲酸溶液中。混合液继续反应2小时后,将反应混合物倒入500ml冰水中,用盐酸将溶液pH值调至2左右,过滤出产生的沉淀,真空干燥,得产物对羧基苯基琥珀酸双酯(bis-CPS)。将10g bis-CPS于100ml乙酸酐中回流2h,50℃恒温水浴中减压蒸馏出乙酸酐,剩余物用干燥的无水乙醚萃取,磁力搅拌过夜,倾析出乙醚,固体产物于放有P2O5的真空干燥器中真空干燥,得预聚物。精确称取一定量的预聚物到干燥的聚合管中,于180℃油浴中高真空(0.1mmHg)脱乙酸酐2h,冷却后用氯仿溶解,石油醚沉淀,得聚(对羧基苯基琥珀酸双酯)(P(bis-CPS))。图1是聚(对羧基苯基琥珀酸双酯共-癸二酸酐)(P(bis-CPS:SA))在波长为327nm紫外光激发下的荧光光谱图;图2是聚(对羧基苯基琥珀酸双酯共-癸二酸酐)(P(bis-CPS:SA))在波长为462nm光激发下荧光光谱图。
实施例2
水杨酸(0.08mol)溶解在70ml THF中,加入吡啶(0.096mol),丁二酰氯(0.088mol)溶于12ml THF中,用恒压漏斗慢慢滴加到水杨酸溶液中。继续反应2小时后,将反应混合物倒入500ml冰水中,再用盐酸将溶液pH值调至2左右,然后过滤出产生的沉淀,真空干燥,得产物(产率90%),预聚物与聚合物的合成与实例1类似。
实施例3
丁香酸(0.08mol)溶解在70ml THF中,加入吡啶(0.096mol),丁二酰氯(0.088mol)溶于12ml THF中,用恒压漏斗慢慢滴加到丁香酸溶液中。继续反应2小时后,将反应混合物倒入500ml冰水中,再用盐酸将溶液pH值调至2左右,然后过滤出产生的沉淀,真空干燥,得产物(产率84%),预聚物与聚合物的合成与实例1类似。
实施例4
香草酸(0.08mol)溶解在70ml THF中,加入吡啶(0.096mol),丁二酰氯(0.088mol)溶于12ml THF中,用恒压漏斗慢慢滴加到香草酸溶液中。继续反应2小时后,将反应混合物倒入500ml冰水中,再用盐酸将溶液pH值调至2左右,然后过滤出产生的沉淀,真空干燥,得产物(产率84%),预聚物与聚合物的合成与实例1类似。
实施例5
对氨基苯甲酸(0.08mol)溶解在70ml THF中,加入吡啶(0.096mol),丁二酰氯(0.088mol)溶于12ml THF中,用恒压漏斗慢慢滴加到对氨基苯甲酸溶液中。继续反应2小时后,将反应混合物倒入500ml冰水中,再用盐酸将溶液pH值调至2左右,然后过滤出产生的沉淀,真空干燥,得产物(产率95%),预聚物与聚合物的合成与实例1类似。
实施例6
对羟基苯甲酸(0.08mol)溶解在70ml THF中,加入吡啶(0.096mol),2-乙酰氧丁二酰氯(0.088mol)溶于12ml THF中,用恒压漏斗慢慢滴加到对羟基苯甲酸溶液中。继续反应2小时后,将反应混合物倒入500ml冰水中,再用盐酸将溶液pH值调至2左右,然后过滤出产生的沉淀,真空干燥,得产物(产率95%),预聚物与聚合物的合成与实例1类似。
实施例7
对巯基苯甲酸(0.08mol)溶解在70ml THF中,加入吡啶(0.096mol),丁二酰氯(0.088mol)溶于12ml THF中,用恒压漏斗慢慢滴加到香草酸溶液中。混合液继续反应2小时后,将反应混合物倒入500ml冰水中,再用盐酸将溶液pH值调至2左右,然后过滤出产生的沉淀,真空干燥,得产物(产率92%),预聚物与聚合物的合成与实例1类似。
实施例8
对羟基苯甲酸(0.08mol)溶解在70ml THF中,加入吡啶(0.096mol),2-乙酰胺丁二酰氯(0.088mol)溶于12ml THF中,用恒压漏斗慢慢滴加到对羟基苯甲酸溶液中。继续反应2小时后,将反应混合物倒入500ml冰水中,再用盐酸将溶液pH值调至2左右,然后过滤出产生的沉淀,真空干燥,得产物(产率95%),预聚物与聚合物的合成与实例1类似。
Claims (3)
1.一种生物降解荧光聚酸酐的制备方法,其特征在于:0.05~1.0mol苯甲酸衍生物与0.05~1.0mol丁二酰氯或其衍生物,在0.05~1.0mol有机胺催化下,于20~200ml有机溶剂中反应1~24h,得到对应的二元酸;1~100g二元酸经10~1000ml乙酸酐回流1~3h制备得到预聚物;1~50g预聚物在160~180℃、0.01~2mmHg熔融缩聚1~4h得到聚酸酐。
2.根据权利要求1所述的一种生物降解荧光聚酸酐的制备方法,其特征在于:所说的苯甲酸衍生物为:对羟基苯甲酸、水杨酸、对氨基苯甲酸、间氨基苯甲酸、邻氨基苯甲酸、对氨基水杨酸、5-氨基水杨酸、丁香酸或香草酸。
3.根据权利要求1所述的一种生物降解荧光聚酸酐的制备方法,其特征在于:所说的有机胺为:三乙胺、吡啶、二甲基氨基吡啶或它们的混合物,有机溶剂为:四氢呋喃、二氧六环、丙酮、丁酮、二甲基甲酰胺或它们的混合物。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410025773 CN1257926C (zh) | 2004-06-30 | 2004-06-30 | 生物降解荧光聚酸酐制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410025773 CN1257926C (zh) | 2004-06-30 | 2004-06-30 | 生物降解荧光聚酸酐制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1594391A CN1594391A (zh) | 2005-03-16 |
CN1257926C true CN1257926C (zh) | 2006-05-31 |
Family
ID=34663837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200410025773 Expired - Fee Related CN1257926C (zh) | 2004-06-30 | 2004-06-30 | 生物降解荧光聚酸酐制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1257926C (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103467726B (zh) * | 2013-07-22 | 2015-09-09 | 南开大学 | 基于10-十一碳烯酸和香草酸制备可降解聚酯的方法 |
-
2004
- 2004-06-30 CN CN 200410025773 patent/CN1257926C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1594391A (zh) | 2005-03-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Guo et al. | Synthesis and characterization of anti-bacterial and anti-fungal citrate-based mussel-inspired bioadhesives | |
US8394914B2 (en) | Functional polyglycolide nanoparticles derived from unimolecular micelles | |
JP3255365B2 (ja) | 天然アミノ酸l−チロシンの誘導体を含むポリアリーレート | |
Gottschalk et al. | Hyperbranched polylactide copolymers | |
Li et al. | Novel stimuli-responsive micelle self-assembled from Y-shaped P (UA-Y-NIPAAm) copolymer for drug delivery | |
CN104672199B (zh) | 一种含双碘环碳酸酯化合物及其制备方法 | |
CN105542141B (zh) | 一种侧链含双碘功能基团的生物可降解共聚物及其应用 | |
Guo et al. | Synthesis, characterization, and biodegradation of novel poly (ether ester amide) s based on L-phenylalanine and oligoethylene glycol | |
Andrianov et al. | Degradation of polyaminophosphazenes: Effects of hydrolytic environment and polymer processing | |
CN103396554B (zh) | 一种水凝胶、其制备方法及应用 | |
Zou et al. | Supramolecular hydrogels from inclusion complexation of α-cyclodextrin with densely grafted chains in micelles for controlled drug and protein release | |
Wang et al. | Facile synthesis of reductively degradable biopolymers using cystamine diisocyanate as a coupling agent | |
Li et al. | Synthesis, Characterization, and Morphology Studies of Biodegradable Amphiphilic Poly [(R)-3-hydroxybutyrate]-a lt-Poly (ethylene glycol) Multiblock Copolymers | |
CN102964582B (zh) | 一种嵌段共聚物、其制备方法及水凝胶 | |
TR201809741T4 (tr) | Polimer-nsaid konjügatı. | |
Slager et al. | Heterostereocomplexes prepared from D-poly (lactide) and leuprolide. I. Characterization | |
Khuddus et al. | Melt Polycondensation Strategy for Amide-Functionalized l-Aspartic Acid Amphiphilic Polyester Nano-assemblies and Enzyme-Responsive Drug Delivery in Cancer Cells | |
CN1257926C (zh) | 生物降解荧光聚酸酐制备方法 | |
Zou et al. | Synthesis and characterization of a biodegradable amphiphilic copolymer based on branched poly (ϵ‐caprolactone) and poly (ethylene glycol) | |
Bian et al. | End-chain fluorescent highly branched poly (l-lactide) s: synthesis, architecture-dependence, and fluorescent visible paclitaxel-loaded microspheres | |
CN108912327B (zh) | 一种水溶性非共轭结构的可降解活细胞荧光成像材料及其制备方法和应用 | |
CN102807657A (zh) | 具有pH响应性和生物可降解性的双亲水性嵌段共聚物药物载体及其制备 | |
KR101526308B1 (ko) | 생체 내 이식 적용 및 중장기 생체소재 분해 추적용 조영제가 화학적 결합된 생체소재 및 이의 제조방법 | |
Paredes et al. | Packing of sequential poly (ester amide) s derived from diols, dicarboxylic acids, and amino acids | |
CN1136248C (zh) | 具有内在荧光特性的可生物降解聚酸酐及其合成方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |