Polymer Source P18952-BdEO说明书

世界*实验材料供应商 polymer source 正式授权上海起发为其中国代理， polymer source 在一直是行业的*,一直为广大科研客户提供zui为的产品和服务,上海起发一直秉承为中国科研客户带来的产品，的服务，签约 polymer source 就是为了给广大科研客户带来更加完善的产品和服务,您的满意将是我们zui大的收获

 polymer source 中国代理, polymer source 上海代理， polymer source 北京代理，polymer source 广东代理， polymer source 江苏代理polymer source 湖北代理,polymer source 天津,polymer source 黑龙江代理,polymer source 内蒙古代理,polymer source 吉林代理,polymer source 福建代理, polymer source 江苏代理, polymer source 浙江代理, polymer source 四川代理,

polymersource成立于1994年，是一家的高质量建筑控制专业级的聚合物和生物聚合物的研究产品供应商。polymersource的研究团队包括动态，主管和创新的科学家，在各种学术和研究机构提供*的服务。

polymersource的科学家已经完成了生产3000多嵌段共聚物，产品质量得到了*的认可。除了提供生物/聚合物，聚合物源已经开发了基于我们的产品的合成和应用知识产权。

Sample Name: Poly(butadiene-b-ethylene oxide)

Sample #: P18952-BdEO

(poly butadiene block rich in 1,2-addition)

Structure of 1,2-rich microstructure:

Synthesis Procedure:

Poly(butadiene[1,4- or 1,2 addition]-b-ethylene oxide)

can be prepared by the different routes as reported in the literature (ref: Macromolecules 1996, 29, 6994).

The direct synthesis of diblock copolymer using lithium counter ion in the presence of phosphazene base t-BuP₄ is reported in Macromolecules 1999, 32 (8), 2783–785. The polymers can also be successfully synthesized using the different end-functionalized polymers as investigated in our lab. These methodologies are proprietary.

Characterization:

OH-terminated polybutadiene polymer was analyzed by size exclusion chromatography (SEC) to obtain the molecular weight and polydispersity index (PDI). The final block copolymer composition was calculated from ¹H-NMR spectroscopy by comparing the peak area of the vinylic butadiene protons between about 5.0-5.4 ppm with the ethylene oxide protons at 3.6 ppm. Block copolymer PDI is determined by SEC. Note: The ¹H-NMR of 1,2-polybutadiene is composed of 1 proton signal at 5.4 ppm and 2 proton signals at 5.0 ppm. Signals due to vinylic 1,4-polybutadiene are also present at 5.4 ppm.

Solubility:

Poly(butadiene-b-ethylene oxide) is soluble in THF, CHCl₃, and toluene. The polymer has variable solubility in hexane, methanol, ethanol and water depending on its composition.

DSC thermal analysis of P18952-BdEO:

Thermal analysis of the samples was carried out on a TA Q100 differential scanning calorimeter at a heating rate of 10^oC/min.The midpoint of the slope change of the heat flow plot of the second heating scan was considered as the glass transition temperature (T_g).

The melting temperature (T_m) was taken as the maximum of the endothermic peak where as the crystallization temperature (Tc) was considered as the minimum of the exothermic peak.

货号	品名	规格	生产厂家
P18952-BdEO	Poly(butadiene(1,2 addition)-b-ethylene oxide)	2g	polymersource

P18952-BdEO现货供应

我们公司zui大优势是强大的采购，

1：基本什么都能进口，血清，抗体，耗材，还有部分限制进口的，

2：货品全，现经营过700多个品牌，基本所有生物试剂耗材都可以进口，特别是冷偏的产品那就更有优势，

3：提供加急服务，一般1-2周到货，超过时限加急费全免

4：价格公道，绝大部分价格有优势，当然不能保证100%产品都是,因为意味着没有服务.

5：良好的信誉，大部分客户我们提供货到付款服务，客户包括清华，北大 交大 复旦，中山等100多所大学，ROCHE，阿斯利康，国药 ，fisher等500多家公司

6：我们*代理的品牌有：Antibody Research Corporation，arcticzymes，Biorelevant，AmberGen, Inc. ，clemente-associates，clodronaiposomes，Columbia Biosciences，enzyme research，Gene Bridges GmbH，Genovis，AmberGen, Inc.  Biotechnology GmbH，Haematologic Technologies HTI Haemtech，hookelabs，Immudex，Innovative Research of America，inspiralis ，List Biological Laboratories, Inc.，lumafluor，Microsurfaces，multiplicom，nanotools，Pel-Freez Biologicals，pentapharm，progen，Protein Ark，QA-Bio,Inc，QA-Bio,IncQuickZyme Biosciences，Teknova，TriLink BioTechnologies, Inc.，Zyagen Laboratories 等

7：我们还是invitrogen,qiagen,Midland BioProducts Corporationam,sigma;neb,roche,merck, rnd,BD, GE,pierce,BioLegend等知名*批发，欢迎合作。