Research on the Synthesis of Phenol-Urea Alternative Copolymer

苯酚-脲替代共聚物的合成研究

基本信息

  • 批准号:
    01560176
  • 负责人:
  • 金额:
    $ 1.34万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
  • 财政年份:
    1989
  • 资助国家:
    日本
  • 起止时间:
    1989 至 1990
  • 项目状态:
    已结题

项目摘要

The chemical kinetics on Cocondensation between methylolphenols and urea under acidic condition were investigated using 2- and 4-hydroxybenzyl alcohols as well as 2, 4, 6-trimethylolphenol as model compounds. The reactivities of the cocondensations were compared between o- and p-methylol groups. Moreover the kinetics on the concurrent reactions involving self-condensation between monomethylolphenols and cocondensation between monomethylolphenol and urea were determined simultaneously.The results showed : (1) cocondensations of 2- or 4-hydroxybenzyl alcohol with an excessive amount of urea were determined as the pseudo-first order reaction ; (2) the pseudo-first order rate constant for a formation of 4-hydroxybenzylurea was larger by one order than that of 2-hydroxybenzylurea ; (3) reactivity ratio of o-methylol group to p-methylol group was 0.066-0.075 for the cocondensation of 2, 4, 6-trimethylolphenol and urea ; (4) the reactivity ratio of self-condensation to cocondensa-tion was determined for the concurrent reaction of mono-methylol-phenols with urea ; (5) the rate constant of the self-condensation of 2-hydroxybenzyl alcohols was larger by one order than that of the cocondensation 2-hydroxybenzyl alcohol and urea ; (6) the rate constant of the cocondensation between 4-hydroxybenzyl alcohol with urea was approximately twofold as that of the self-condensation between 4-hydoxybenzyl alcohols.This study shows for the first time in the field of formaldehyde resin chemistry that the kinetics on the two kinds of concurrent reaction can be elucidated, and will lead to the development of new urea and phenolic resins.
以2-羟基苄醇和4-羟基苄醇和2,4,6-间苯二酚为模型化合物,研究了酸性条件下羟甲基苯酚与尿素共缩合反应的化学动力学。共缩合反应的反应性进行了比较之间的o-和p-羟甲基。同时测定了单羟甲基苯酚自缩合反应和单羟甲基苯酚与尿素共缩合反应的动力学,结果表明:(1)2-或4-羟基苯甲醇与过量尿素的共缩合反应均为准一级反应;(2)生成4-羟基苄基脲的准一级速率常数比生成2-羟基苄基脲的准一级速率常数大一个数量级;(3)2,4,6-间苯二酚与尿素共缩合反应的邻、对羟甲基竞聚率为0.066-0.075;(4)测定了单羟甲基苯酚与尿素同时反应的自缩合与共缩合竞聚率;(5)2-羟基苯甲醇自缩合反应的速率常数比2-羟基苯甲醇与尿素共缩合反应的速率常数大一个数量级;(6)4-羟基苯甲醇与尿素的共缩合反应速率常数约为4-羟基苯甲醇与尿素的自缩合反应速率常数的2倍。本研究在甲醛树脂化学领域首次阐明了这两类同时发生的反应的动力学,为开发新型脲醛树脂和酚醛树脂提供了理论依据。

项目成果

期刊论文数量(34)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
吉田 育紀: "メチロ-ルフェノ-ルとユリアの共縮合反応における動力学(II) OーおよびPーメチロ-ル基の反応性" 第41回日本木材学会大会.
吉田育典:“羟甲基苯酚和尿素的共缩合反应动力学(II)O-和P-羟甲基的反应性”第41届日本木材学会年会。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Bunichiro TOMITA: "Dynamic Mechanical Properties of Phenol-Formaldehyde-Urea Cocondensed Resins During and After Curing" J. Polym. Sci., Polym. Chem. Ed.
Bunichiro TOMITA:“苯酚-甲醛-脲共缩合树脂在固化期间和固化后的动态机械性能”J. Polym。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Bunichiro TOMITA: "Structural Analysis of PhauolーFormaldehydeーUrea Cocondensed Resins" J.Polymer Sci.,Polym.Chem.Ed.
富田文一郎:“酚-甲醛-尿素共缩合树脂的结构分析”J.Polymer Sci.,Polym.Chem.Ed。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
吉田 育紀: "メチロ-ルフェノ-ルとユリアの共縮合反応における動力学" 第40回日本木材学会大会研究発表要旨集. 132-132 (1990)
Ikunori Yoshida:“羟甲基苯酚和尿素共缩合反应的动力学”日本木材学会第 40 届年会记录 132-132 (1990)。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
吉田 育紀: "メチロ-ルフェノ-ルとユリアの共縮合反応における動力学(III) 共縮合と自己縮合の併発系" 第41回日本木材学会大会.
吉田育典:《羟甲基苯酚和尿素的共缩合反应动力学(III)共缩合和自缩合的同时体系》第41届日本木材学会年会。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

TOMITA Bunichiro其他文献

TOMITA Bunichiro的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('TOMITA Bunichiro', 18)}}的其他基金

Application of Liquefaction to Wood-Based Materials Hard to be Abandoned
液化在难废弃木质材料中的应用
  • 批准号:
    13460072
  • 财政年份:
    2001
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
New Reduction Method of Formaldehyde Emission from Wood-Based Materials
减少木质材料甲醛释放量的新方法
  • 批准号:
    10460070
  • 财政年份:
    1998
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Efficient Utilization of Ozonized Lignin
臭氧化木质素的高效利用
  • 批准号:
    08556025
  • 财政年份:
    1996
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
COCONDENSATION OF MELAMINE AND UREA THROUGH FORMALDEHYDE
三聚氰胺和尿素通过甲醛共缩合
  • 批准号:
    07456077
  • 财政年份:
    1995
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Synthesis of Phenol-Urea-Formaldehyde Cocondensed Resins and Their Application
苯酚-脲-甲醛共缩合树脂的合成及其应用
  • 批准号:
    04453140
  • 财政年份:
    1992
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
New Curing System of Urea-Formaldehyde Resins Under Neutral Condition
新型脲醛树脂中性条件固化体系
  • 批准号:
    61560184
  • 财政年份:
    1986
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

相似海外基金

Kinetic analysis of multivalent interaction regulating the dynamic molecular assembly
调节动态分子组装的多价相互作用的动力学分析
  • 批准号:
    23K19353
  • 财政年份:
    2023
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Research Activity Start-up
Kinetic analysis guided by artificial intelligence
人工智能引导的动力学分析
  • 批准号:
    2904763
  • 财政年份:
    2023
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Studentship
Kinetic analysis of carbon corrosion reactions in alkaline electrolyte solutions using a newly developed DEMS system
使用新开发的 DEMS 系统对碱性电解质溶液中的碳腐蚀反应进行动力学分析
  • 批准号:
    23K13819
  • 财政年份:
    2023
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
Building a binding community - Capacity and capability for affinity and kinetic analysis of molecular interactions.
建立结合社区 - 分子相互作用的亲和力和动力学分析的能力和能力。
  • 批准号:
    MR/X013227/1
  • 财政年份:
    2022
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Research Grant
Kinetic analysis and High efficiency of water electrolysis with layered Mn oxides containing metal complexes
含有金属配合物的层状锰氧化物的动力学分析和高效水电解
  • 批准号:
    22K04715
  • 财政年份:
    2022
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Evaluation and application of binding ability between mycotoxin and lactic acid bacteria cell wall components using kinetic analysis.
动力学分析评价霉菌毒素与乳酸菌细胞壁成分结合能力及应用
  • 批准号:
    22K05515
  • 财政年份:
    2022
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
A 'kinetic' analysis of environmental signals regulating winter length recognition in deciduous fruit trees.
调节落叶果树冬季长度识别的环境信号的“动力学”分析。
  • 批准号:
    22H02334
  • 财政年份:
    2022
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
The biomechanics of mobility: advancement of animal locomotion through kinematic and kinetic analysis
移动性生物力学:通过运动学和动力学分析促进动物运动
  • 批准号:
    RGPIN-2019-04728
  • 财政年份:
    2022
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Discovery Grants Program - Individual
The biomechanics of mobility: advancement of animal locomotion through kinematic and kinetic analysis
移动性生物力学:通过运动学和动力学分析促进动物运动
  • 批准号:
    RGPIN-2019-04728
  • 财政年份:
    2021
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Discovery Grants Program - Individual
Development of a chemical reaction sensor array platform for label-free, real-time kinetic analysis of enzyme-substrate reactions to enable high-throughput drug discovery
开发化学反应传感器阵列平台,用于酶-底物反应的无标记实时动力学分析,以实现高通量药物发现
  • 批准号:
    10450925
  • 财政年份:
    2020
  • 资助金额:
    $ 1.34万
  • 项目类别:
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了