Synthesis of hyperbranched poly(ester)s with pendant hydroxy groups by the polyaddition of bis(oxetane)s with 1,3,5-benzenetricarboxylic acid

ABSTRACT Hyperbranched poly(ester)s with many pendant primary hydroxy groups were prepared in 21–84% yields by polyadditions of certain bis(oxetane)s such as

1,4-bis[(3-ethyl-3-oxetanylmethoxymethyl)]benzene (BEOB), 1,2-bis[(3-ethy-3-oxetanyl)methoxy]benzene (1,2-BEOMB), 1,3-bis[(3-ethy-3-oxetanyl)methoxy]benzene (1,3-BEOMB),

1,4-bis[(3-ethy-3-oxetanyl)methoxy]benzene (1,4-BEOMB), 4,4′-bis[(3-ethyl-3-oxetanyl)methoxy]biphenyl (4,4′-BEOBP), 3,3′,5,5′-tetramethyl-[4,4′-bis(3-ethyl-3-oxetanyl)methoxy]biphenyl

(TM-BEOBP) with 1,3,5-benzenetricarboxylic acid (TMA) using tetraphenylphosphonium chloride (TPPC) as a catalyst in NMP at 140 °C for 12 h. Resulting polymers were insoluble in water;

however, these polymers were soluble in 2.3% tetramethylammonium hydroxide aqueous solution. These polymers were also soluble in dioxane, THF, MEK, and aprotic polar solvents. The glass

transition temperatures (_T_gs) of these polymers were 59–131 °C. SIMILAR CONTENT BEING VIEWED BY OTHERS PROTECTION-FREE ONE-POT SYNTHESIS OF ALCOHOL END-FUNCTIONALIZED

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ARCHITECTURAL POLYETHERS VIA THE ANIONIC RING-OPENING POLYMERIZATION OF EPOXIDE MONOMERS USING A PHOSPHAZENE BASE CATALYST Article 15 April 2021 ARTICLE PDF REFERENCES * A. S. Pell and G.

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M. Okawara, J. Kumanotani, and M. Seno, Ed., Kodansha, Tokyo, 1976. Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Department of Applied Chemistry, Faculty of

Engineering, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama, 221-8686, Japan Tadatomi Nishikubo, Hiroto Kudo & Takehiko Nakagami Authors * Tadatomi Nishikubo View author

publications You can also search for this author inPubMed Google Scholar * Hiroto Kudo View author publications You can also search for this author inPubMed Google Scholar * Takehiko

Nakagami View author publications You can also search for this author inPubMed Google Scholar CORRESPONDING AUTHOR Correspondence to Tadatomi Nishikubo. RIGHTS AND PERMISSIONS Reprints and

permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Nishikubo, T., Kudo, H. & Nakagami, T. Synthesis of Hyperbranched Poly(ester)s with Pendant Hydroxy Groups by the Polyaddition of

Bis(oxetane)s with 1,3,5-Benzenetricarboxylic Acid. _Polym J_ 38, 145–152 (2006). https://doi.org/10.1295/polymj.38.145 Download citation * Received: 05 September 2005 * Accepted: 04 October

2005 * Published: 15 February 2006 * Issue Date: 01 February 2006 * DOI: https://doi.org/10.1295/polymj.38.145 SHARE THIS ARTICLE Anyone you share the following link with will be able to

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initiative KEYWORDS * Synthesis of Hyperbranched Poly(ester) * Pendant Hydroxy Group * Polyaddition * Bis(oxetane) * 1,3,5-Benzenetricarboxylic Acid