新闻详情

Polymer source特约代理商 P15019-SEOCOOHcomb

日期:2022-07-30 05:05
浏览次数:688
摘要:Polymer source特约代理商 P15019-SEOCOOHcomb

Polymer source特约代理商 P15019-SEOCOOHcomb



NMR spectrum of SSButene random:

Sample Name: Polystyrene Graft Ethylene Oxide Functionalized with carboxy acid groups

 

Sample #: P41758A-SEOCOOHcomb

 

Structure:

CH2
CH2
CH2 CH2
O      CH2           CH2           O     C
H2
H2 C

COOH

NMR spectrum of SSButanol:

Composition:

Mn x 103

(Main Chain)

Mn x 103

(Graft Chain)

Mn x 103

(Total Chain)

Mw/M

n   (Total)

6.0

2.8

34.0

1.02

PEO: 10 branches

 


Synthesis Procedure:

Polystyrene-g-poly (ethylene oxide) is synthesized by polymerization of ethylene oxide on the polystyrene bearing hydroxyl functions. The following reaction scheme shows how the product was prepared:



 

NMR spectrum of SSEO graft:


 

1. 

NMR spectrum of the Sample:

H2C

sec-BuLi

+ H2C        CH  

or AIBN/TEMPO

CH2 CH2 CH CH2

CH2 CH2 CH CH2

9BBN H2O2

1. K
2. EO

CH2 CH2 CH2 CH2 OH










 

Characterization:

The product was characterized by size exclusion chromatography (SEC) and 1H NMR.

 

Solubility:

Polystyrene-g-poly (ethylene oxide) is soluble in THF, DMF, chloroform, and Toluene. It precipitates from hexanes and cold ether.


SEC elugram of SSallyl ran Lot P41741:


 

 

SEC elugram of the Sample:


 

Polymer Source Inc. 成立于 1993 年,旨在为全球科学界提供研究级聚合物。2002 年,Polymer Source 搬迁到大蒙特利尔地区(加拿大魁北克省多瓦尔市)的一栋新大楼,该大楼由其个人计划建造。现有设施包括一个大型化学实验室、四个分析室、化学仓库;丝瓜视频免费在线下载现在正在设置一个洁净室以满足特定客户的需求。2012 年,公司实施了 ISO 9001 质量管理体系并记录了标准操作程序 (SOP),以符合国际法规。如今,Polymer Source 产品通过日本、中国、韩国、印度和英国的国际分销商在世界各地销售。


研究与开发
Polymer Source 的成功基于强大的研发战略,以闯新和开发新产品和定制服务。丝瓜视频免费在线下载的科学团队成员拥有化学博士学位和/或硕士学位以及跨学科研究经验,他们专注于寻找优雅的工艺来制造具有明确化学结构和特定材料特性的新聚合物,以支持世界各地的研究项目。


加拿大Polymer Soruce  
 加拿大Polymer Soruce成立于1994年. 
 A:Deuterated Polymers 氘代聚合物 
1. Deuterated Homopolymers 氘代均聚物 
2. Deuterated Block Copolymers 氘代嵌段共聚物 
3. Deuterated Functionlized Polymers 氘代功能聚合物 
4. Deuterated Random and Alternating Copolymers 氘代无规和交替共聚物 
5. Deuterated Monomers 氘代单体 
6. Deuterated Oligomers (Dimer & Trimer etc.) 氘代齐聚物(二聚物和三聚物等) 
7. C13 Labeled Polymers C13标示聚合物 
B:Protonated Polymers 质子化聚合物 
1. Monomers-High Purity 高纯单体 
2. Hydrophobic Polymers 憎水聚合物 
3. Hydrophilic Polymers 亲水聚合物 
4. Diblock Copolymers 双嵌段共聚物 
5. Amphiphilic Block Copolymers 两性嵌段共聚物 
6. A-B-A Triblock Copolymers A-B-A三嵌段共聚物 
7. A-B-C Triblock Copolymers A-B-C三嵌段共聚物 
8. Random and Alternating Copolymers 无规和交替共聚物 
9. Functionalized Polymers 功能聚合物 
10. Star-like Polymers 星形聚合物 
11. Comb-like Polymers 梳子形聚合物 
12. Labeled Polymers 标示聚合物 
13. Ionomers 离子聚合物 
14. Oligomers (Dimer & Trimer etc.) 齐聚物(二聚物和三聚物等) 
15. Conducting and Luminescence Polymers 导电和荧光聚合物 "