Polymer Source P18952-BdEO說明書

世界*實驗材料供應商 polymer source 正式授權上海起發為其中國代理， polymer source 在一直是行業的*,一直為廣大科研客戶提供zui為的產品和服務,上海起發一直秉承為中國科研客戶帶來的產品，的服務，簽約 polymer source 就是為了給廣大科研客戶帶來更加完善的產品和服務,您的滿意將是我們zui大的收獲

 polymer source 中國代理, polymer source 上海代理， polymer source 北京代理，polymer source 廣東代理， polymer source 江蘇代理polymer source 湖北代理,polymer source 天津,polymer source 黑龍江代理,polymer source 內蒙古代理,polymer source 吉林代理,polymer source 福建代理, polymer source 江蘇代理, polymer source 浙江代理, polymer source 四川代理,

polymersource成立于1994年，是一家的高質量建筑控制專業級的聚合物和生物聚合物的研究產品供應商。polymersource的研究團隊包括動態，主管和創新的科學家，在各種學術和研究機構提供*的服務。

polymersource的科學家已經完成了生產3000多嵌段共聚物，產品質量得到了*的認可。除了提供生物/聚合物，聚合物源已經開發了基于我們的產品的合成和應用知識產權。

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.

貨號	品名	規格	生產廠家
P18952-BdEO	Poly(butadiene(1,2 addition)-b-ethylene oxide)	2g	polymersource

P18952-BdEO現貨供應

我們公司zui大優勢是強大的采購，

1：基本什么都能進口，血清，抗體，耗材，還有部分限制進口的，

2：貨品全，現經營過700多個品牌，基本所有生物試劑耗材都可以進口，特別是冷偏的產品那就更有優勢，

3：提供加急服務，一般1-2周到貨，超過時限加急費全免

4：價格公道，絕大部分價格有優勢，當然不能保證100%產品都是,因為意味著沒有服務.

5：良好的信譽，大部分客戶我們提供貨到付款服務，客戶包括清華，北大 交大 復旦，中山等100多所大學，ROCHE，阿斯利康，國藥 ，fisher等500多家公司

6：我們*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：我們還是invitrogen,qiagen,Midland BioProducts Corporationam,sigma;neb,roche,merck, rnd,BD, GE,pierce,BioLegend等知名*批發，歡迎合作。